# Automation Research Group, Full Content Export

> Machine-readable content for AI agents. Philadelphia-based OEM & ODM embedded
> systems developer since 2004, full-stack hardware (electronics, firmware,
> mechanical, manufacturing) plus ARG's own instruments and connectivity modules.
> Contact: info@automationresearchgroup.com · +1.267.819.2816
> Canonical HTML site: https://www.automationresearchgroup.com/ · Index: https://www.automationresearchgroup.com/llms.txt

---

# Products


## Cellular LTE-M / NB-IoT Module, Connectivity Modules

URL: https://www.automationresearchgroup.com/cell-modem/

Nordic nRF9160 · LTE-M, NB-IoT · Integrated GPS/GNSS · Plug-in module

Drop into any ARG host board. The same Host API works across all ARG comm modules, switch connectivity technologies at production time with zero firmware changes.

**At a glance:** LTE-M & NB-IoT (Dual-mode, global band support) · GPS / GNSS (Integrated positioning, no extra chip) · ~500 msgs (Offline queue, auto-replay on reconnect) · 2″ × 1″ (Common ARG module footprint)


### Global cellular connectivity. No new wiring. No host changes.
The ARG Cellular Module pairs Nordic’s nRF9160 LTE-M/NB-IoT SiP with integrated GPS/GNSS and a 4MB offline storage buffer onto a 2″ × 1″ plug-in card. It connects to any ARG host board via Samtec headers and exposes the ARG Common Host API, the same UART binary interface used by every ARG comm module.


### One host board. Any connectivity.
- **Same Form Factor**, 2″ × 1″ board, Samtec headers on 2mm centers. Every ARG comm module, cellular, Wi-Fi, Power Line, Modbus, fits the same footprint on the host PCB.
- **Same Host API**, A single UART binary protocol, PUBLISH, STATUS_GET, RECEIVED, works identically across all module types. The host sends a payload and receives data without knowing the underlying radio.
- **Any Technology**, Cellular for remote field sites. Wi-Fi for campus deployments. Power Line where wiring exists. Modbus for BMS integration. Select the module for each deployment, the product board never changes.
- **OTA Firmware Updates**, 3.5MB NOR flash staging partition allows full over-the-air module firmware updates. The host streams the new image over UART; the modem validates, self-programs, and reboots autonomously.


### Production-grade cellular. Built for the field.
- **LTE-M & NB-IoT**, Nordic nRF9160 SiP. Dual-mode LTE-M (Cat-M1) and NB-IoT (Cat-NB1) with global band support. Hologram embedded eSIM + nano-SIM slot. Up to 1 Mbps DL on LTE-M.
- **Integrated GPS / GNSS**, GPS and GLONASS positioning built into the nRF9160, no external GNSS chip required. Used for geo-tagged telemetry, asset tracking, and location-based alerting.
- **Resilient Offline Queue**, 256KB NVS circular buffer holds approximately 500 full-size messages. Frames queued automatically while offline. Auto-replay oldest-first on reconnect. No data loss during network outages.


### Specifications

#### Module Specifications
- **Chipset**: Nordic nRF9160-SICA SiP (ARM Cortex-M33 + LTE modem)
- **Cellular Protocols**: LTE-M (Cat-M1), NB-IoT (Cat-NB1)
- **LTE Bands**: B1, B2, B3, B4, B5, B8, B12, B13, B17, B18, B19, B20, B25, B26, B28, B66 (LTE-M); + B71 (NB-IoT)
- **Data Rate**: LTE-M: 1 Mbps DL / 1 Mbps UL · NB-IoT: 27 kbps DL / 63 kbps UL
- **Tx Power**: Up to +23 dBm
- **GNSS**: Integrated GPS & GLONASS
- **SIM**: Embedded eSIM (Hologram Global) + nano-SIM card slot
- **Flash Storage**: 4MB NOR flash (W25Q32), 3.5MB OTA staging, 256KB offline queue
- **Supply Voltage**: 3.0 – 5.5V DC
- **Sleep Current**: <2.5 µA (PSM mode)
- **Form Factor**: 2.0″ × 1.0″ (50.8 × 25.4 mm)
- **Connector**: Samtec plug-in headers, 2mm pitch (both edges)
- **Operating Temperature**: −40°C to +85°C

#### Host API Interface
- **Protocol**: ARG Binary Frame Protocol v0.1
- **Physical**: UART, 460,800 baud, 8N1, hardware flow control (RTS/CTS)
- **Signals**: TX, RX, RTS, CTS, nRST, PWR_EN
- **Frame Format**: SOF (0xAA) + VER + TYPE + LEN[2] + PAYLOAD[0–512] + CRC16-CCITT[2]
- **Max Frame**: 519 bytes · Max payload: 512 bytes
- **CPU Burden**: Zero, DMA + hardware flow control on both host and modem; CPU wakes only on complete frame
- **Offline Buffering**: 256KB NVS queue (~500 messages); auto-replay oldest-first on reconnect
- **Compatibility**: Protocol-identical across all ARG comm modules, cellular, Wi-Fi, G3-PLC, Modbus



### Documentation
- [Module Datasheet (PDF)](https://www.automationresearchgroup.com/files/ARG_CellModem_DataSheet.pdf)
- [Host API Specification (PDF)](https://www.automationresearchgroup.com/files/ARG_CommonHostAPI_SpecSheet-2.pdf)


### Cell Modem, FAQ

**Q: What cellular technologies does it support?**
LTE-M (Cat-M1) and NB-IoT on the Nordic nRF9160, with integrated GPS/GNSS and global band coverage. A Hologram global eSIM plus a nano-SIM slot are included.

**Q: How does it connect to my product?**
Over the ARG Common Host API, a binary UART protocol. The host sends application payloads; the module handles the radio, TLS, MQTT, retry, and offline queuing autonomously.

**Q: Can I switch to Wi-Fi or power line later?**
Yes. Every ARG comm module shares the same footprint and the same Host API, so you can swap between cellular, Wi-Fi, and G3-PLC with no host firmware changes.

**Q: Does it support over-the-air updates?**
Yes, a NOR flash staging partition lets the module self-program new firmware over the air; it also buffers messages while offline and replays them on reconnect.

---

## DC3 Industrial Edge Gateway, Industrial Edge

URL: https://www.automationresearchgroup.com/dc3/

Cellular · Wi-Fi · G3-PLC · Modbus TCP/IP, every interface on one DIN-rail device.

Powers from 80–480 VAC. Connects to ARG Cloud, on-premises SCADA, and BMS systems out of the box.

**At a glance:** 4 (Communication interfaces) · 255 (Nodes / G3-PLC cluster) · 80–480V (AC power input range) · 3.75 kV (Galvanic isolation)


### One gateway. Every protocol.
The DC3 bridges legacy industrial devices to modern cloud platforms over any available medium, cellular, Wi-Fi, G3-PLC power-line mesh, or Modbus TCP/IP. It powers directly from the AC line (80‑480 VAC, 15 VA), mounts on a standard 35 mm DIN rail, and connects to ARG Cloud via MQTT with no network infrastructure required.


### Everything a field-hardened gateway needs.
- **Cellular LTE / 4G + eSIM**, Embedded eSIM + nano-SIM slot. LTE Cat-4 with automatic fallback. No SIM card provisioning required for ARG Cloud deployments.
- **Wi-Fi 802.11 b/g/n**, 2.4 GHz 802.11 b/g/n. Connects to existing facility Wi-Fi or operates as a standalone AP for local device access.
- **G3-PLC Power-Line Mesh**, ITU-T G.9903, CENELEC-B (Europe) & FCC (North America) bands. Up to 255 nodes per cluster, 3-mile range over existing AC wiring. No new cabling required.
- **Modbus RTU & TCP/IP**, RS-485 Modbus RTU master/slave and Modbus TCP/IP over Ethernet. Bridges legacy field devices to ARG Cloud or SCADA systems.
- **ARG Cloud (MQTT)**, Preconfigured MQTT to ARG Cloud portal. Remote monitoring, OTA firmware updates, configurable polling intervals, and alerts.
- **Industrial Power Input**, 80‑480 VAC line powered, 15 VA. 3.75 kVAC galvanic isolation. IP40 enclosure. ‑40 to +75 °C.



### Specifications

#### Technical Specifications
- **Power Input**: 80–480 VAC, 50/60 Hz, 15 VA max
- **Isolation**: 3.75 kVAC galvanic isolation
- **Cellular**: LTE Cat-4 (4G), embedded eSIM + nano-SIM slot; ARG Cloud MQTT preconfigured
- **Wi-Fi**: 802.11 b/g/n, 2.4 GHz
- **G3-PLC**: ITU-T G.9903 (CENELEC-B & FCC bands); 255 nodes/cluster; ∼3 mile range over existing wiring
- **Modbus**: Modbus RTU (RS-485) master/slave + Modbus TCP/IP via Ethernet 10/100
- **Ethernet**: 10/100 BASE-T, RJ-45
- **Cloud Connectivity**: MQTT to ARG Cloud; also supports on-premises MQTT broker and SCADA/BMS integration
- **Operating Temperature**: −40 °C to +75 °C
- **Enclosure Rating**: IP40
- **Mounting**: 35 mm DIN rail
- **Standards**: ITU-T G.9903, IEEE 802.11b/g/n, Modbus Application Protocol V1.1b3


### From the panel to the cloud.
- **Industrial Automation**, Aggregate Modbus RTU devices, PLCs, drives, sensors, and forward data to SCADA, MES, or ARG Cloud over cellular or Ethernet.
- **Building Automation**, Retrofit G3-PLC mesh into commercial buildings over existing wiring. Monitor energy, HVAC, and access control with no new cable runs.
- **Smart Grid / Utility**, Deploy a G3-PLC network across a distribution feeder. 255 nodes per cluster, up to 3 miles range, with ARG Cloud backhaul via cellular.
- **Remote & Harsh Sites**, IP40 rated, −40 to +75 °C operation. Powers from the local AC panel. Cellular backhaul where Ethernet is unavailable.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_DC3_DataSheet.pdf)
- [Integration Overview (PDF)](https://www.automationresearchgroup.com/files/ARG_Integration_Overview.pdf)


### Power Line Communication, FAQ

**Q: Isn't power line communication an outdated technology?**
No. PLC keeps evolving, modern standards such as G3-PLC and IEEE 1901.2 bring improved modulation, stronger security, and hybrid (PLC + RF) networking. It's a core layer in next-generation smart grids and industrial IoT, and increasingly a data backbone: it collects reliable data from distributed devices that AI and analytics platforms use for predictive maintenance, grid optimization, and anomaly detection.

**Q: Aren't power lines too noisy for reliable communication?**
Power lines are noisy, but modern PLC is built for that environment. OFDM modulation, forward error correction (FEC), interleaving, and adaptive tone mapping keep communication robust even under severe noise.

**Q: Will PLC disturb my power supply or connected equipment?**
No. PLC uses low-power, high-frequency signals superimposed on the line, negligible next to the power itself. They're designed to coexist with power delivery, are filtered and coupled to avoid affecting equipment, and comply with EMC standards. A properly designed PLC system doesn't affect power quality or supply stability.

**Q: Isn't PLC too slow, suitable only for low data rates?**
PLC isn't inherently slow, it's tuned to the application. Narrowband PLC runs from kb/s to hundreds of kb/s, mid-band reaches Mb/s, and broadband up to roughly 1 Gb/s. Standards like G3-PLC and IEEE 1901.2 deliver hundreds of kb/s, plenty for advanced metering, firmware updates, and real-time grid control, where determinism matters more than peak throughput.

**Q: Isn't wireless always the better choice?**
Not for systems already connected to power. Wireless wins on mobility, but PLC offers deterministic coverage, any device on the line can be reached, without coverage gaps, spectrum congestion, or dependence on external infrastructure. The DC3 carries cellular, Wi-Fi, and G3-PLC on one device, so you use the right medium for each link.

**Q: Can I just use a wireless modem on the power line?**
No. The power-line channel is fundamentally different from RF, periodic noise synced to the AC cycle, frequency-selective attenuation, impedance swings, and impulse noise from motors, relays, and switching. Reliable PLC needs a PHY layer purpose-built for that channel, not a wireless modem adapted to it.

**Q: Is PLC only useful for smart meters?**
Metering (AMI) is common, but PLC also serves street lighting, industrial automation, EV charging, transportation, and renewable energy. Modern narrowband PLC supports IPv6 (6LoWPAN), mesh routing, and strong security, making it a general-purpose technology for large-scale, mission-critical infrastructure.

**Q: Is PLC secure?**
Yes. Modern PLC standards include AES encryption (128/256-bit), authentication, secure key management, and controlled device provisioning. As a wired medium it also avoids over-the-air exposure, requires physical access to tap, and reduces the risk of jamming, spoofing, or RF-based attacks, a strong fit for critical infrastructure.

**Q: Is PLC difficult to deploy?**
Usually the opposite. PLC reuses existing electrical wiring, no trenching, no new cable runs, no wireless site surveys or spectrum planning. With minimal added hardware, deployment is faster and total cost is lower.

**Q: Does PLC scale to large deployments?**
Yes, up to millions of nodes across mesh and hierarchical topologies with utility-grade management. ARG's G3-PLC (ITU-T G.9903, CENELEC-B / FCC) supports 255 nodes per cluster with roughly 3-mile range over existing wiring, and clusters combine for wider coverage.

**Q: Is PLC future-proof?**
PLC is becoming core to long-term grid architecture. Modern standards (G3-PLC, IEEE 1901.2) are IPv6-based (6LoWPAN), built for interoperability and long lifecycles, and still evolving toward hybrid PLC+RF and higher performance. PLC networks already support DER integration, EV charging, and AI-driven grid analytics.

---

## G3-PLC Power Line Module, Connectivity Modules

URL: https://www.automationresearchgroup.com/g3-plc-module/

Microchip PL460 · Hybrid G3-PLC + RF · CENELEC B & FCC · Plug-in module

Communicate over existing power wiring, no new cabling, no RF spectrum, no interference. The same Host API works across all ARG comm modules: switch from Power Line to cellular or Wi-Fi with zero host firmware changes.

**At a glance:** G3-PLC (CENELEC B & FCC bands (EU + N. America)) · 255 nodes (Auto-mesh, auto-healing network) · 80–305V (AC input, single & three phase) · 256-bit ECC (Private network encryption)


### Hybrid power line + RF networking. No new wiring.
The ARG G3-PLC Module is built around the Microchip PL460 OFDM modem, running the G3-PLC standard on both the CENELEC B band (95–125 kHz, Europe) and the FCC band (154–488 kHz, North America). On top of the power-line link it runs the G3-Hybrid profile, a secondary sub-GHz RF radio (SUN FSK, IEEE 802.15.4) sharing one mesh, so every node is reachable over the wiring, over the air, or both, with the network taking the stronger path automatically. It operates over 80–305 VAC lines, supports up to 255 nodes per mesh with auto-commissioning and self-healing, and exposes the ARG Common Host API, the same UART binary interface used by every ARG comm module. Deployed in the iAQ-Pro-D HVAC monitor and GSB-01 gas sensor module.


### One host board. Any connectivity.
- **Same Form Factor**, Samtec plug-in headers, common ARG module footprint. Every ARG comm module, cellular, Wi-Fi, Power Line, Modbus, fits the same pinout on the host PCB.
- **Same Host API**, A single UART binary protocol, PUBLISH, STATUS_GET, RECEIVED, works identically across all module types. The host sends a payload and receives data without knowing the underlying medium.
- **Any Technology**, Power Line where wiring exists. Cellular for remote field sites. Wi-Fi for campus deployments. Modbus for BMS integration. Select the module for each deployment, the Host API and host firmware stay the same.
- **OTA Firmware Updates**, 3.5MB NOR flash staging partition allows full over-the-air module firmware updates. The host streams the new image over UART; the modem validates, self-programs, and reboots autonomously.


### G3-PLC networking over your existing infrastructure.
- **Hybrid PLC + RF**, The G3-Hybrid profile pairs the power-line link with a secondary sub-GHz RF radio (SUN FSK, IEEE 802.15.4-2020). Both media run one unified G3 mesh, so every node is reachable over the wiring, over the air, or both, redundant paths with no second network to manage.
- **Automatic Medium Selection**, The mesh routes each hop over whichever medium is stronger, power line or RF, and re-routes across the two as conditions change. A noisy phase, a transformer boundary, or a blocked radio link never takes a node offline; the network moves the data path to the medium that works.
- **G3-PLC CENELEC B & FCC**, Microchip PL460 OFDM modem. Runs the G3-PLC standard on the CENELEC B band (95–125 kHz) for Europe and the FCC band (154–488 kHz) for North America. Bi-directional data transfer between the power line and the host UART. Worldwide regulatory acceptance.
- **Self-Healing Mesh Network**, Up to 255 nodes per network. Automatic network commissioning, nodes discover and join without manual configuration. Mesh auto-healing reroutes traffic around failed nodes automatically.
- **Private Network Security**, Network PAN ID and private pre-shared key (PSK) prevent cross-network interference. Optional ECC 256-bit encryption for secure private network commissioning and end-to-end payload protection.
- **Wide AC Input Range**, Operates over 80–305 VAC, 50/60 Hz, single and three phase. The AC input is capacitively coupled with an isolation transformer; no active power is consumed on the AC rail.


### Specifications

#### Module Specifications
- **PLC Chipset**: Microchip PL460 OFDM Power Line Modem
- **PLC Standard**: G3-PLC, CENELEC B (95–125 kHz, Europe) & FCC (154–488 kHz, North America). Band selectable in firmware, but the host-board coupling passives fix the analog pass-band, the fitted C5 and the firmware band setting must agree.
- **RF (G3-Hybrid)**: Secondary sub-GHz RF medium, SUN FSK per IEEE 802.15.4-2020, license-free ISM. Runs the same G3 mesh; nodes route over PLC, RF, or both, selected automatically per hop.
- **Modulation**: OFDM (G3-PLC)
- **Data Rate**: Up to ~40 kbps on CENELEC B; higher throughput on the wider FCC band
- **Line Voltage Range**: 80 – 305 VAC, 50/60 Hz, single & three phase, via the host-board coupling network. The module itself has no mains connection.
- **Line Coupling**: On host board (not on module), capacitive coupling + isolation transformer; reference design and BOM supplied. Zero active power drawn from the AC line.
- **Network Size**: Up to 255 nodes per network
- **Network Topology**: Auto-commissioning mesh with auto-healing
- **Security**: Network PAN ID + private PSK; optional ECC 256-bit encryption
- **12V Power Rail**: 12 V, 70–150 mA (analog front end)
- **3.3V Power Rail**: 3.25 – 3.35 V, 56–65 mA (digital section)
- **Digital IO**: 3.3V UART (TX, RX), active-low reset, 2× digital outputs
- **Connector**: Samtec plug-in headers, 0.38mm board-mount pins
- **Form Factor**: 2.0″ × 1.0″ (50.8 × 25.4 mm), common ARG module footprint
- **Storage Temperature**: −40°C to +120°C
- **Operating Temperature**: −40°C to +85°C

#### Host API Interface
- **Protocol**: ARG Binary Frame Protocol v0.1
- **Physical**: UART, 460,800 baud, 8N1, hardware flow control (RTS/CTS)
- **Signals**: TX, RX, RTS, CTS, nRST, PWR_EN
- **Frame Format**: SOF (0xAA) + VER + TYPE + LEN[2] + PAYLOAD[0–512] + CRC16-CCITT[2]
- **Max Frame**: 519 bytes · Max payload: 512 bytes
- **CPU Burden**: Zero, DMA + hardware flow control on both host and modem; CPU wakes only on complete frame
- **Compatibility**: Protocol-identical across all ARG comm modules, cellular, Wi-Fi, G3-PLC, Modbus



### Documentation
- [Module Datasheet (PDF)](https://www.automationresearchgroup.com/files/ARG_G3PLC_Module_DataSheet.pdf)
- [Host API Overview (PDF)](https://www.automationresearchgroup.com/files/ARG_CommonHostAPI_Overview.pdf)


### Power Line Communication, FAQ

**Q: What does the host board need to provide for the PLC coupling?**
The module connects to the mains through a small coupling network on your host board, a band-setting film capacitor (C5, 470 nF for CENELEC B), a series inductor, a bidirectional TVS, and an isolation/matching transformer. That's roughly four parts and about $6 per node in standard distributor stock. Your board also supplies two DC rails: 12 V at 70–150 mA for the analog front end and 3.3 V at 56–65 mA for the digital section. The band is set by C5 plus a firmware setting, changing band (CENELEC B ↔ A ↔ FCC) is a capacitor swap on your board, not a different module part number. Keeping the mains-referenced parts on the host board also puts the creepage and clearance decisions on the board you certify. An evaluation carrier with the coupling network already fitted is available, and the reference schematic, module footprint, and mechanical drawing are supplied to integrators.

**Q: Is the module CE / EN 50065 certified?**
It is designed to the EN 50065-1 CENELEC B conducted-emission limits, and the underlying Microchip PL460 / G3-PLC stack is used in certified smart-metering and building-automation equipment worldwide. Formal CE / EN 50065 certification is undertaken as part of a production programme, because conducted emissions in the CENELEC band are substantially a property of the finished assembly and its coupling network, not the module in isolation. ARG runs that certification path with you as part of the build.

**Q: Isn't power line communication an outdated technology?**
No. PLC keeps evolving, modern standards such as G3-PLC and IEEE 1901.2 bring improved modulation, stronger security, and hybrid (PLC + RF) networking. It's a core layer in next-generation smart grids and industrial IoT, and increasingly a data backbone: it collects reliable data from distributed devices that AI and analytics platforms use for predictive maintenance, grid optimization, and anomaly detection.

**Q: Aren't power lines too noisy for reliable communication?**
Power lines are noisy, but modern PLC is built for that environment. OFDM modulation, forward error correction (FEC), interleaving, and adaptive tone mapping keep communication robust even under severe noise.

**Q: Will PLC disturb my power supply or connected equipment?**
No. PLC uses low-power, high-frequency signals superimposed on the line, negligible next to the power itself. They're designed to coexist with power delivery, are filtered and coupled to avoid affecting equipment, and comply with EMC standards. A properly designed PLC system doesn't affect power quality or supply stability.

**Q: Isn't PLC too slow, suitable only for low data rates?**
PLC isn't inherently slow, it's tuned to the application. Narrowband PLC runs from kb/s to hundreds of kb/s, mid-band reaches Mb/s, and broadband up to roughly 1 Gb/s. Standards like G3-PLC and IEEE 1901.2 deliver hundreds of kb/s, plenty for advanced metering, firmware updates, and real-time grid control, where determinism matters more than peak throughput.

**Q: Isn't wireless always the better choice?**
Not for systems already connected to power. Wireless wins on mobility, but PLC offers deterministic coverage, any device on the line can be reached, without coverage gaps, spectrum congestion, or dependence on external infrastructure. The two are complementary: the G3-PLC module pairs naturally with a cellular or Wi-Fi backhaul.

**Q: Can I just use a wireless modem on the power line?**
No. The power-line channel is fundamentally different from RF, periodic noise synced to the AC cycle, frequency-selective attenuation, impedance swings, and impulse noise from motors, relays, and switching. Reliable PLC needs a PHY layer purpose-built for that channel, not a wireless modem adapted to it.

**Q: Is PLC only useful for smart meters?**
Metering (AMI) is common, but PLC also serves street lighting, industrial automation, EV charging, transportation, and renewable energy. Modern narrowband PLC supports IPv6 (6LoWPAN), mesh routing, and strong security, making it a general-purpose technology for large-scale, mission-critical infrastructure.

**Q: Is PLC secure?**
Yes. Modern PLC standards include AES encryption (128/256-bit), authentication, secure key management, and controlled device provisioning. As a wired medium it also avoids over-the-air exposure, requires physical access to tap, and reduces the risk of jamming, spoofing, or RF-based attacks, a strong fit for critical infrastructure.

**Q: Is PLC difficult to deploy?**
Usually the opposite. PLC reuses existing electrical wiring, no trenching, no new cable runs, no wireless site surveys or spectrum planning. With minimal added hardware, deployment is faster and total cost is lower.

**Q: Does PLC scale to large deployments?**
Yes, up to millions of nodes across mesh and hierarchical topologies with utility-grade management. ARG's G3-PLC (ITU-T G.9903, CENELEC-B / FCC) supports 255 nodes per cluster with roughly 3-mile range over existing wiring, and clusters combine for wider coverage.

**Q: Is PLC future-proof?**
PLC is becoming core to long-term grid architecture. Modern standards (G3-PLC, IEEE 1901.2) are IPv6-based (6LoWPAN), built for interoperability and long lifecycles, and still evolving toward hybrid PLC+RF and higher performance. PLC networks already support DER integration, EV charging, and AI-driven grid analytics.

---

## GSB-01, Gas Sensor Modules

URL: https://www.automationresearchgroup.com/gsb-01/

Three-Gas Industrial Monitoring Module

Simultaneous CH₄, NH₃, and H₂S monitoring with Modbus RTU or Power Line Communications, no new wiring required. CH₄ sensor is ATEX and IECEx certified for Zone 1/2 hazardous areas.

**At a glance:** 3 (Gas channels (CH₄, NH₃, H₂S)) · 500 ppm (H₂S range (1 ppm resolution)) · 100% (Vol. CH₄ NDIR range) · 2 comms (Modbus RTU or Power Line)


### Three critical gases. One compact module.
The GSB-01 combines NDIR methane sensing with solid polymer electrochemical detection of ammonia and hydrogen sulfide on a single board. Selectable Modbus RTU or Power Line Communications means it drops into existing infrastructure with no new wiring.


### Industrial-grade sensors. Production-ready board.
- **Methane (CH₄), NDIR**, Amphenol INIR2-ME100-PC. Non-dispersive infrared, 0–100% vol. CH₄, 10 ppm resolution. ATEX and IECEx certified for use in hazardous areas.
- **Ammonia (NH₃), Electrochemical**, Amphenol PS1-NH3-100 solid polymer electrolyte sensor. 0–100 ppm range, 20 ±10 nA/ppm sensitivity. HVAC plant rooms, agricultural, and industrial hygiene applications.
- **Hydrogen Sulfide (H₂S), Electrochemical**, Amphenol PS1-H2S-500. 0–500 ppm (1000 ppm overload), LDL ≤2 ppm, 1 ppm resolution. T‑90 <30 sec. Sewage, utilities, and confined space monitoring.
- **Modbus RTU or Power Line Comms**, Selectable RS-485 Modbus RTU or Power Line Communications, data over existing AC wiring with zero new cable runs. 4-position screw terminal. Uses the ARG G3-PLC Module for mesh PLC networking.



### Specifications

#### Sensor Specifications

| Parameter | Methane (CH₄) | Ammonia (NH₃) | Hydrogen Sulfide (H₂S) | 
|---|---|---|---|
| Sensor | INIR2-ME100-PC | PS1-NH3-100 | PS1-H2S-500 | 
| Technology | NDIR infrared | Solid polymer electrochemical | Solid polymer electrochemical | 
| Measurement Range | 0–100% vol. CH₄ | 0–100 ppm | 0–500 ppm | 
| Resolution | 10 ppm | ,  | 1 ppm | 
| Sensitivity | ,  | 20 ±10 nA/ppm | 90 ±20 nA/ppm | 
| Max Overload | ,  | ,  | 1000 ppm | 
| LDL / Detectivity | 100 ppm | ,  | ≤2 ppm | 
| T‑90 Response | ~19 sec | ,  | <30 sec | 
| Operating Temp | ‑20°C to +50°C | ‑20°C to +50°C | ‑40°C to +50°C | 
| Sensor Output | Analog + UART | Electrochemical (current) | Electrochemical (current) | 
| Certifications | ATEX, IECEx | ,  | RoHS | 

#### Module Specifications
- **Communications**: Modbus RTU (RS-485) or Power Line Communications, field selectable
- **Connector**: 4-position screw terminal
- **Gas Channels**: 3 (CH₄, NH₃, H₂S), customizable for other gas targets
- **Model**: GSB-01 (Model 01, production-ready configuration)


### From safety compliance to process control.
- **Safety & Leak Detection**, Continuous monitoring for explosive, toxic, and asphyxiant gas hazards. Natural gas leak detection, sewage H₂S, confined space entry monitoring, OSHA PEL/IDLH compliance logging.
- **HVAC & Building Automation**, Air quality and safety monitoring integrated directly into building systems. Parking garage detection, mechanical room safety, BMS integration via Modbus, demand-controlled ventilation.
- **Industrial Process Monitoring**, Continuous gas monitoring in process environments and utilities. Chemical and pharmaceutical plants, agriculture and cold storage (NH₃), water treatment (H₂S).
- **Agriculture & Food Processing**, Monitor ammonia in livestock facilities, cold storage, and food processing environments. Configurable thresholds and cloud alerts for remote monitoring.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_GSB01_DataSheet.pdf)
- [Integration Guide (PDF)](https://www.automationresearchgroup.com/files/ARG_Integration_Overview.pdf)


### GSB-01, FAQ

**Q: What gases does the GSB-01 detect?**
Methane (CH4) via NDIR infrared, plus ammonia (NH3) and hydrogen sulfide (H2S) via electrochemical sensors. The gas complement is configurable for other targets.

**Q: Is it certified for hazardous areas?**
Yes, the CH4 sensor is ATEX and IECEx certified for Zone 1/2 hazardous areas.

**Q: Does it need new wiring?**
No. It communicates over Modbus RTU (RS-485) or G3-PLC power line, data travels over existing AC wiring with zero new cable runs.

**Q: What is the methane range and resolution?**
0–100% vol. CH4 by NDIR, with 10 ppm resolution.

**Q: Where is it used?**
Sewage, utilities, agricultural, and industrial-hygiene settings, gas leak detection, confined-space entry, and mechanical-room safety.

---

## iAQ-Pro-D, Indoor Air Quality Instruments

URL: https://www.automationresearchgroup.com/iaq-duct/

16-Parameter HVAC Duct Mount IAQ Monitor

Real-time monitoring of PM, CO₂, VOC, humidity, temperature, filter pressure drop, and air velocity, directly in the HVAC duct.

**At a glance:** 16 (Parameters measured) · 10 yr (Sensor lifetime) · 7.2″ (Duct mount enclosure (L)) · 80–220V (Universal AC power)


### Continuous IAQ monitoring, directly in the duct.
The iAQ-Pro-D installs directly in HVAC ductwork to continuously measure PM, CO₂, TVOC, humidity, temperature, filter pressure drop, and air velocity, with MCERTS certified PM and 10-year factory-calibrated sensor life.


### Everything a duct-mount sensor should be.
- **MCERTS Certified PM**, PM0.5 through PM10, MCERTS certified by the UK Environment Agency. Both mass concentration (μg/m³) and number concentration. Sensor lifetime > 10 years.
- **Calibration-Free CO₂ & VOC**, Non-NDIR CO₂ (400–5000 ppm, ±40 ppm), no calibration required. High-sensitivity VOC with 0.05 ppm detection limit and 10-year sensor lifetime.
- **Filter & Airflow Monitoring**, Differential pressure sensor monitors filter condition for maintenance alerts. Air velocity from 0.1 to 20 m/s. Catch blocked filters before they waste energy.
- **Zero-Config Networking**, Hybrid Power Line + RF, truly plug-and-play, no field wiring configuration. Powered by the ARG G3-PLC Module. Optional factory-installed cellular modem for legacy rooftop units without neutral wiring.



### Specifications

#### Technical Specifications
- **Particulate Matter**: PM0.5 (number conc.), PM1.0, PM2.5, PM4, PM10, MCERTS certified; 1–1000 μg/m³; ±10 μg/m³ (0–100) / ±10% (100–1000)
- **CO₂**: Non-NDIR; 400–5000 ppm; ±40 ppm + 5% of reading; calibration-free
- **VOC**: 0–1000 ppm ethanol equivalents; LOD < 0.05 ppm; lifetime > 10 years
- **Humidity**: ±1.8% RH; 0–100% RH; 6 sec response (τ63%)
- **Temperature**: ±0.2 °C; 0–90 °C; 2 sec response (τ63%)
- **Filter Pressure**: Differential across duct filter; 0–2000 mbar; ±2 mbar
- **Air Velocity**: Differential pressure technique; 0.1–20 m/s; ±0.2% FS
- **Optional Sensors**: Current sensors (compressor & blower motor monitoring); UV sensor (duct disinfection monitoring)
- **Connectivity**: Hybrid Power Line + RF (zero-config); optional factory-installed cellular (LTE)
- **Power**: 80–220 VAC, 50/60 Hz, 2 W; IEC 2-pin power cord included
- **Enclosure**: Duct mount; 7.20″ × 4.54″ × 4.12″


### Continuous IAQ data where it matters most.
- **HVAC System Management**, Continuous in-duct data for building automation and preventive maintenance. Filter condition monitoring, airflow verification, HVAC fault detection, and energy efficiency optimization.
- **Building IAQ Compliance**, Real-time data for ASHRAE 62.1, WELL Building, and LEED certification. Building commissioning, healthy building certification, tenant IAQ reporting, continuous compliance logging.
- **Commercial & Industrial Facilities**, Scalable monitoring across large buildings using existing HVAC infrastructure. Multi-zone IAQ monitoring, no new wiring, BMS and cloud dashboard integration, retrofit without disruption.
- **OEM & System Integration**, Hybrid PLC+RF output connects to BMS gateways and building controllers. Configurable reporting intervals, cloud or on-premises dashboard, modular sensor complement.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_iAQDuct_DataSheet.pdf)


### iAQ-Pro-D, FAQ

**Q: What does the iAQ-Pro-D monitor?**
Sixteen parameters in-duct, MCERTS-certified particulate matter, CO2, VOC, humidity, temperature, filter pressure drop, and air velocity.

**Q: Does it need new network wiring?**
No. It uses hybrid G3-PLC + RF networking over the existing AC wiring, with an optional factory-installed cellular modem, zero-config plug-and-play, no neutral wire required.

**Q: How is it powered?**
80–220 VAC, 50/60 Hz, via an IEC 2-pin power cord.

**Q: What is it used for?**
Continuous in-duct IAQ for building automation and preventive maintenance, filter-condition monitoring, airflow verification, HVAC fault detection, and energy optimization.

---

## iAQ-Pro, Indoor Air Quality Instruments

URL: https://www.automationresearchgroup.com/iaq-pro/

15-Parameter Handheld IAQ Field Instrument

Measure particulate matter, gases, temperature, humidity, and more, all in one field-ready device with 72-hour battery life.

**At a glance:** 15 (Parameters measured) · 72 hr (Battery life (LiFePO₄)) · 5″ (Touchscreen display) · 1.3 lb (Weight, 10.8″ × 1.6″ × 3.5″)


### One instrument. Every parameter that matters.
The iAQ-Pro measures PM1, PM2.5, PM4, PM10, CO₂, TVOC, NOₓ, CO, temperature, relative humidity, barometric pressure, and sound level, plus optional e-Pod expansion modules for Radon and moisture.


### Everything a field instrument should be.
- **Measure What Matters**, PM1, PM2.5, PM4, PM10, CO₂, TVOC, NOₓ, CO, temp, humidity, pressure, and sound. Expandable with e-Pod modules for Radon and moisture.
- **72-Hour Battery Life**, 6500 mAh LiFePO₄ battery powers a full three-day field survey without recharging. Charges via USB-C.
- **5″ Touchscreen**, Full-color 5-inch display shows live readings, trends, and alerts. Intuitive touch interface, no laptop required in the field.
- **Cellular + Wi-Fi**, Automatic cloud sync via cellular (nRF9160) or Wi-Fi. OTA firmware updates. GPS location tagging on every reading.



### Specifications

#### Technical Specifications
- **Particulate Matter**: PM1, PM2.5, PM4, PM10, optical particle counter
- **Gases**: CO₂ (NDIR), TVOC, NOₓ (electrochemical), CO (electrochemical)
- **Environmental**: Temperature, Relative Humidity, Barometric Pressure, Sound Level
- **Expansion (e-Pods)**: Radon monitor, Moisture / leak sensor
- **Display**: 5″ color touchscreen
- **Battery**: 6500 mAh LiFePO₄, 72 hours typical, USB-C charging
- **Connectivity**: Cellular LTE-M / NB-IoT (nRF9160), Wi-Fi 802.11 b/g/n, BLE 5, GPS
- **Dimensions**: 10.8″ × 1.6″ × 3.5″ (274 mm × 41 mm × 89 mm)
- **Weight**: 1.3 lb (590 g)
- **Data logging**: On-device storage + automatic cloud sync, GPS-tagged readings
- **Firmware**: OTA updates via cellular or Wi-Fi


### Built for professionals who can’t afford bad data.
- **IAQ Assessment**, Comprehensive indoor air quality surveys for commercial and residential buildings. Building commissioning, ASHRAE 62.1 compliance checks, tenant complaint investigations.
- **Environmental Remediation**, Monitor air quality during and after remediation projects. Mold remediation clearance, post-flood or fire recovery, asbestos and lead abatement monitoring.
- **Industrial Hygiene**, Worker exposure monitoring and occupational health compliance. Chemical exposure assessments, OSHA compliance documentation, confined space entry monitoring.
- **Research & Studies**, GPS-tagged readings and automatic cloud sync enable epidemiological studies, longitudinal IAQ research, and comparative site analyses.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_iAQPro_DataSheet.pdf)
- [iAQ-Pro Field Brochure (PDF)](https://www.automationresearchgroup.com/files/iAQ_Pro_Field_Brochure.pdf)
- [iAQ-Pro FAQ (PDF)](https://www.automationresearchgroup.com/files/iAQ_Pro_FAQ.pdf)


### iAQ-Pro, FAQ

**Q: What does the iAQ-Pro measure?**
Particulate matter (PM1, PM2.5, PM4, PM10), CO2, TVOC, NO2, CO, temperature, relative humidity, barometric pressure, and sound level, with optional e-Pod expansion modules for radon and moisture.

**Q: Is it a certified instrument?**
Its particulate sensing is MCERTS-certified, and the unit carries FCC and CE marks.

**Q: How long does the battery last?**
About 72 hours on a charge from its 6500 mAh LiFePO4 pack, enough for a full three-day field survey. It charges over USB-C.

**Q: How is data stored and shared?**
On-device storage plus automatic cloud sync over cellular or Wi-Fi, with GPS-tagged readings and OTA firmware updates.

**Q: Who uses it?**
IAQ professionals, industrial hygienists, and environmental consultants, for building commissioning, ASHRAE 62.1 compliance checks, complaint investigations, and remediation verification.

---

## mmW-Pro, Indoor Sensing

URL: https://www.automationresearchgroup.com/mmw-pro/

60 GHz mmWave Occupancy, People-Counting & Traffic Radar

Privacy-safe people counting, zone occupancy, and outdoor traffic monitoring, no camera, no PII, powered by TI mmWave radar.

**At a glance:** 60 GHz (TI mmWave FMCW radar) · Up to 180 m (Long-range detection (traffic)) · No cam (Privacy-safe, zero PII) · UART (Simple host integration)


### Count people. Count vehicles. Never pixels.
The mmW-Pro is built on TI's IWR6843 60 GHz FMCW mmWave radar, it measures range, velocity, and angle at once to detect presence, count people or vehicles, and report zone-level occupancy or traffic data, without capturing a single image or storing any personal information. The same sensor platform scales from short-range indoor occupancy to long-range outdoor traffic monitoring.


### Occupancy and traffic intelligence without the camera.
- **No Camera. No PII.**, Radar detects, counts, and tracks without capturing images or identifying individuals. Inherently privacy-safe and GDPR-compatible, indoors or in public spaces.
- **Range, Velocity & Angle**, FMCW radar measures distance, speed (Doppler), and angle of arrival simultaneously, tracking up to 250 detected points and 20+ moving targets, whether people in a room or vehicles on a road.
- **Designed to Integrate**, UART output connects directly to building controllers, BMS gateways, traffic cabinets, or host microcontrollers. Simple protocol, configurable zones and range.
- **Indoor or Outdoor**, Radar is unaffected by darkness, glare, rain, or fog. Compact 4.3″ enclosure for indoor ceiling/wall mounting; weatherproof variant for outdoor traffic and perimeter use.



### Specifications

#### Technical Specifications
- **Radar Technology**: 60 GHz FMCW (TI IWR6843 single-chip)
- **Measurements**: Range, velocity (Doppler) and angle of arrival, simultaneously
- **Antenna Configuration**: 3 TX / 4 RX integrated on-chip
- **Sweep Bandwidth**: Up to 4 GHz (60–64 GHz band)
- **Range Resolution**: ~4 cm (at full 4 GHz sweep)
- **Detection Range**: Configurable, ~6 m indoor occupancy, up to 180 m long-range for traffic (per TI traffic-monitoring reference design)
- **Field of View**: Up to 120° azimuth (occupancy); ~100° (long-range traffic)
- **Tracking Capacity**: Up to 250 detected points; 20+ simultaneous targets
- **Detection Modes**: People counting, zone occupancy, presence (indoor); vehicle detection, counting & speed (traffic)
- **Output Interface**: UART, occupancy count, presence state, target/track list
- **Power Supply**: 5V DC
- **Housing**: 4.3″ (109mm) circular enclosure (indoor); weatherproof enclosure for outdoor/traffic variant
- **Mounting**: Wall, ceiling, pole or gantry mount
- **Operating Temperature**: -20°C to +85°C
- **Environment**: Indoor, or outdoor with weatherproof enclosure


### Smarter spaces and safer roads start with knowing what’s moving.
- **Smart Office & Workplace**, Right-size HVAC and lighting to actual occupancy. Desk and room occupancy, HVAC zone optimization, meeting room utilization, after-hours presence alerts.
- **Retail & Hospitality**, Understand customer flow and dwell patterns to optimize layout and staffing. Entrance people counting, dwell time, queue depth, heat mapping.
- **Building Automation**, Feed occupancy data directly into BMS and energy management systems. Occupancy-driven HVAC control, lighting automation by zone, energy utilization reporting.
- **Traffic Monitoring & ITS**, Detect, count, and measure the speed of vehicles across multiple lanes at ranges up to 180 m. Intersection and free-flow monitoring, queue length, stopped- and wrong-way-vehicle detection for intelligent transport systems.
- **Smart City & Outdoor Spaces**, Pedestrian and vehicle flow in plazas, campuses, and parking areas. Works in rain, fog, and total darkness, no camera, no personal data captured.
- **OEM Integration**, UART interface, configurable zones, and adjustable range make mmW-Pro easy to embed in third-party controllers, kiosks, traffic cabinets, and building or city-management platforms.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_mmWPro_DataSheet.pdf)


### mmW-Pro, FAQ

**Q: How far can the mmW-Pro detect?**
Range is set in firmware by mode and antenna, roughly 6 m for indoor occupancy up to about 180 m for long-range outdoor traffic monitoring, on the same TI IWR6843 platform TI specifies for its traffic-monitoring reference design. Detection zones and range are configurable.

**Q: Does it record or identify people?**
No. It is radar, not a camera, it measures range, velocity, and angle from reflected radio waves. It captures no images and stores no personally identifiable information, so it is inherently privacy-safe and GDPR-compatible.

**Q: Can it be used outdoors for traffic management?**
Yes. A weatherproof variant mounts on a pole or gantry and detects, counts, and measures the speed of vehicles across multiple lanes, for intersection and free-flow monitoring, queue length, and stopped- or wrong-way-vehicle detection.

**Q: Does it work in darkness, rain, or fog?**
Yes. mmWave radar is unaffected by darkness, glare, rain, or fog, unlike cameras or PIR sensors.

**Q: How does it connect to my system?**
Over the ARG Common Host API, a binary UART protocol shared across every ARG module. The sensor outputs occupancy counts, presence state, and per-target track data.

---

## PM1, Power Quality Measurement

URL: https://www.automationresearchgroup.com/pm1/

Single-Phase Energy Monitoring & Load Control

Revenue-grade 277VAC single-phase energy metering and scheduled load control, with flexible Wi-Fi, cellular, Modbus, or power line communications.

**At a glance:** 277VAC (Single-phase rated) · 0.1% (Metering accuracy) · 4 (Comm options (plug-in)) · DIN rail (35mm, panel-ready)


### Precision single-phase energy monitoring.
The PM1 measures active, reactive, and apparent power, RMS current and voltage, power factor, line frequency, and cumulative energy on any single-phase 277VAC circuit, with 0.1% accuracy across a 4000:1 dynamic range. Add contactor control and you have a complete single-phase energy management node.


### Everything a single-phase monitoring node needs.
- **Revenue-Grade Metering**, 0.1% accurate across a 4000:1 dynamic range. Active, reactive, and apparent power. RMS voltage and current. Power factor, line frequency, and cumulative energy.
- **Flexible Communications**, Wi-Fi 6 (2.4/5GHz), Modbus TCP/IP, Cellular LTE-M with Onomondo eSIM, or Hybrid Power Line & RF mesh. One protocol selected at order, no network installer required.
- **Scheduled Load Control**, External contactor control up to 600VAC / 1.2A, independent of line voltage. Built-in RTC with 48-hour power backup. Non-volatile load schedule storage.
- **Enterprise Security**, EAP-PSK with 256-bit ECC encryption, configured at the factory. TLS/SSL for all cloud and on-premises connections. Only whitelisted nodes can join the network.



### Specifications

#### Technical Specifications
- **Voltage Input**: 80–277VAC, single-phase (L-N), 50/60Hz
- **Metering Accuracy**: 0.1% across a 4000:1 dynamic range (IEC 62053-22 Class 0.2 equivalent)
- **Measured Parameters**: Active, reactive & apparent power; RMS voltage & current; power factor; line frequency; cumulative energy
- **Current Input**: External CT connection (1 CT) via cage clamp terminals
- **Reporting Interval**: 1 second to 1 day (configurable); local storage when offline, auto-sync on reconnect
- **Load Control**: External contactor: 80–600VAC coil, 1.2A max, independent of line voltage
- **Real-Time Clock**: On-board RTC with 48-hour power backup; non-volatile schedule storage
- **Communication**: Wi-Fi 6 (2.4/5GHz), or, Modbus TCP/IP, or, Cellular LTE-M/NB-IoT (Onomondo eSIM), or, Hybrid PLC+RF (CENELEC-B)
- **Security**: EAP-PSK, 256-bit ECC (factory-configured); TLS/SSL cloud & on-premises
- **Dimensions**: 2.66 × 2.95 × 4.21 in (68 × 75 × 107 mm)
- **Mounting**: 35mm DIN rail
- **Operating Temperature**: -40°C to +85°C


### From the circuit to the cloud.
- **Sub-Metering & Cost Allocation**, Monitor individual circuits, machines, or tenant spaces. Granular energy visibility at the circuit level, with interval data logging and cost allocation by load.
- **Demand Response & Load Control**, Automate load shedding and scheduled switching without a separate PLC. Time-of-use scheduling, peak demand management, contactor control up to 600VAC.
- **Remote & Distributed Sites**, Deploy in locations without network infrastructure using cellular or PLC mesh. LTE-M for remote sites, PLC mesh with no new wiring, cloud or on-premises dashboard.
- **Building Energy Management**, Integrate PM1 into building management systems via Modbus TCP/IP or Wi-Fi. Real-time circuit visibility, automated reporting, and load scheduling in commercial buildings.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_PM1_DataSheet.pdf)


### PM1, FAQ

**Q: How is the PM1 different from the PM3?**
Same metering platform and 0.1% accuracy, but for single-phase circuits up to 277 VAC rather than three-phase 480 VAC.

**Q: How accurate is it?**
0.1% across a 4000:1 dynamic range, IEC 62053-22 Class 0.2 equivalent, revenue-grade.

**Q: Can it control a load?**
Yes, an external contactor up to 600 VAC / 1.2 A, with on-board RTC scheduling for time-of-use and demand management.

**Q: What are the connectivity and mounting options?**
Wi-Fi, Modbus TCP/IP, cellular, or a hybrid PLC + RF mesh; 35 mm DIN-rail mount.

---

## PM3, Power Quality Measurement

URL: https://www.automationresearchgroup.com/pm3/

3-Phase Energy Monitoring & Load Control

Industrial-grade 480VAC energy metering and scheduled load control for heavy industry, with flexible Wi-Fi, cellular, Modbus, or power line communications.

**At a glance:** 480VAC (3-phase industrial rated) · 0.1% (Metering accuracy) · 4 (Comm options (plug-in)) · DIN rail (35mm, panel-ready)


### Precision energy monitoring. Any industrial load.
The PM3 measures active, reactive, and apparent power, RMS current and voltage, power factor, line frequency, and cumulative energy across up to three 480VAC phases, with 0.1% accuracy across a 4000:1 dynamic range. Add contactor control and you have a complete energy management node.


### Everything a power monitoring node needs to be.
- **Industrial-Grade Metering**, 0.1% accurate across a 4000:1 dynamic range. Active, reactive, and apparent power. RMS voltage and current. Power factor, line frequency, and cumulative energy.
- **Flexible Communications**, Wi-Fi 6 (2.4/5GHz), MODBUS TCP/IP, Cellular LTE-M with Onomondo eSIM, or Hybrid Power Line & RF mesh. One protocol selected at order, no network installer required.
- **Scheduled Load Control**, External contactor control up to 600VAC / 1.2A, independent of line voltage. Built-in RTC with 48-hour power backup. Non-volatile load schedule storage.
- **Enterprise Security**, EAP-PSK with 256-bit ECC encryption, configured at the factory. TLS/SSL for all cloud and on-premises connections. Only whitelisted nodes can join the network.



### Specifications

#### Technical Specifications
- **Voltage Input**: 80–480VAC, 1–3 phase (L-L or L-N), 50/60Hz
- **Metering Accuracy**: 0.1% across a 4000:1 dynamic range (IEC 62053-22 Class 0.2 equivalent)
- **Measured Parameters**: Active, reactive & apparent power; RMS voltage & current; power factor; line frequency; cumulative energy
- **Current Input**: External CT connection (1–3 CTs) via cage clamp terminals
- **Reporting Interval**: 1 second to 1 day (configurable); local storage when offline, auto-sync on reconnect
- **Load Control**: External contactor: 80–600VAC coil, 1.2A max, independent of line voltage
- **Real-Time Clock**: On-board RTC with 48-hour power backup; non-volatile schedule storage
- **Communication**: Wi-Fi 6 (2.4/5GHz), or, MODBUS TCP/IP, or, Cellular LTE-M/NB-IoT (Onomondo eSIM), or, Hybrid PLC+RF (CENELEC-B)
- **Security**: EAP-PSK, 256-bit ECC (factory-configured); TLS/SSL cloud & on-premises
- **Dimensions**: 2.66 × 2.95 × 4.21 in (68 × 75 × 107 mm)
- **Mounting**: 35mm DIN rail
- **Operating Temperature**: -40°C to +85°C


### From the panel to the cloud.
- **Industrial Energy Management**, Monitor and report energy consumption across multi-phase 480VAC industrial loads. Sub-metering by machine or circuit, energy cost allocation, trending and interval data logging.
- **Demand Response & Load Control**, Automate load shedding and scheduled switching without a separate PLC. Time-of-use scheduling, peak demand management, contactor control up to 600VAC.
- **Remote & Distributed Sites**, Deploy in locations without network infrastructure using cellular or PLC mesh. Cellular LTE-M for remote sites, PLC mesh with no new wiring, cloud or on-premises dashboard.
- **Building Energy Management**, Integrate PM3 into building management systems via Modbus TCP/IP or Wi-Fi. Real-time power visibility, automated reporting, and load scheduling in commercial facilities.


### Documentation
- [Product Brief (PDF)](https://www.automationresearchgroup.com/files/ARG_PM3_DataSheet.pdf)


### PM3, FAQ

**Q: What does the PM3 measure?**
Active, reactive, and apparent power, RMS voltage and current, power factor, line frequency, and cumulative energy across up to three phases at 80–480 VAC.

**Q: How accurate is it?**
0.1% across a 4000:1 dynamic range, IEC 62053-22 Class 0.2 equivalent, revenue-grade.

**Q: Can it control loads?**
Yes. It drives an external contactor (up to 600 VAC, 1.2 A) with an on-board real-time clock and non-volatile schedule storage, for time-of-use scheduling, peak-demand management, and demand response.

**Q: How does it communicate?**
Wi-Fi, Modbus TCP/IP, cellular LTE-M/NB-IoT, or a hybrid PLC + RF mesh, selected at order time, with TLS/SSL for cloud and on-premises connections.

**Q: How does it mount?**
On a 35 mm DIN rail; current transformers connect via clamp terminals.

---

## Wi-Fi / Bluetooth Module, Connectivity Modules

URL: https://www.automationresearchgroup.com/wifi-modem/

u-blox NINA-W131 · 802.11 b/g/n · Bluetooth 4.2 Classic & BLE · Plug-in module

Drop into any ARG host board. The same Host API works across all ARG comm modules, switch from Wi-Fi to cellular or Power Line with zero host firmware changes.

**At a glance:** 802.11 b/g/n (Wi-Fi, 2.4 GHz, up to 72 Mbps) · BT 4.2 (Classic BR/EDR + BLE dual-mode) · WPA2-Enterprise (EAP-TLS, PEAP, EAP-TTLS) · 2″ × 1″ (Common ARG module footprint)


### Wi-Fi and Bluetooth on the same plug-in card.
The ARG Wi-Fi Module is built around the u-blox NINA-W131, an ESP32-based SoC delivering 802.11 b/g/n Wi-Fi and Bluetooth 4.2 Classic/BLE on a single 2″ × 1″ plug-in card. It connects to any ARG host board via Samtec headers and exposes the ARG Common Host API.


### One host board. Any connectivity.
- **Same Form Factor**, 2″ × 1″ board, Samtec headers on 2mm centers. Every ARG comm module, cellular, Wi-Fi, Power Line, Modbus, fits the same footprint on the host PCB.
- **Same Host API**, A single UART binary protocol, PUBLISH, STATUS_GET, RECEIVED, works identically across all module types. The host sends a payload and receives data without knowing the underlying radio.
- **Any Technology**, Cellular for remote field sites. Wi-Fi for campus deployments. Power Line where wiring exists. Modbus for BMS integration. Select the module for each deployment, the product board never changes.
- **OTA Firmware Updates**, 3.5MB NOR flash staging partition allows full over-the-air module firmware updates. The host streams the new image over UART; the modem validates, self-programs, and reboots autonomously.


### Wi-Fi and Bluetooth. Enterprise-grade security.
- **Wi-Fi 802.11 b/g/n**, u-blox NINA-W131 (ESP32 SoC). 2.4 GHz band, up to 72.2 Mbps on 802.11n HT20. Station and SoftAP modes simultaneously. Built-in TCP/IP stack and TLS 1.2, secure cloud connectivity without a host TLS library.
- **Bluetooth 4.2 Classic & BLE**, Dual-mode Bluetooth 4.2: BR/EDR Classic for audio and SPP profiles, BLE for low-energy sensor telemetry and mobile app pairing. Up to +9 dBm Tx power.
- **WPA2-Enterprise Security**, WPA2-Personal and WPA2-Enterprise with EAP-TLS, EAP-TTLS/MSCHAPv2, and PEAP. Suitable for corporate and industrial networks requiring certificate-based authentication.
- **Open CPU or AT Command Mode**, Run u-blox u-connectXpress AT firmware for simple host integration, or deploy custom application firmware directly on the ESP32 core via ESP-IDF or Arduino. OTA updates supported.


### Specifications

#### Module Specifications
- **Chipset**: u-blox NINA-W131-03B (ESP32 dual-core Xtensa LX6, 240 MHz)
- **Wi-Fi Standard**: IEEE 802.11 b/g/n, 2.4 GHz
- **Max Data Rate**: 72.2 Mbps (802.11n HT20, MCS7)
- **Wi-Fi Security**: WEP, WPA, WPA2-Personal, WPA2-Enterprise (EAP-TLS, PEAP, EAP-TTLS)
- **Wi-Fi Tx Power**: +18 dBm (802.11b) · +16 dBm (802.11g/n)
- **Bluetooth**: Bluetooth 4.2, Classic BR/EDR + BLE dual-mode
- **BT Tx Power**: Up to +9 dBm (Classic & BLE)
- **Antenna**: Integrated PCB trace antenna (NINA-W131-03B variant)
- **Flash / RAM**: 4 MB SPI flash · 520 KB SRAM
- **Supply Voltage**: 2.7 – 3.6 V (nom. 3.3 V)
- **Deep Sleep Current**: <10 µA
- **Form Factor**: 2.0″ × 1.0″ (50.8 × 25.4 mm) carrier card
- **Connector**: Samtec plug-in headers, 2mm pitch (both edges)
- **Certifications**: FCC (XO9NINAW131), CE, IC, TELEC, KC, RCM, RoHS
- **Operating Temperature**: −40°C to +85°C

#### Host API Interface
- **Protocol**: ARG Binary Frame Protocol v0.1
- **Physical**: UART, 460,800 baud, 8N1, hardware flow control (RTS/CTS)
- **Signals**: TX, RX, RTS, CTS, nRST, PWR_EN
- **Frame Format**: SOF (0xAA) + VER + TYPE + LEN[2] + PAYLOAD[0–512] + CRC16-CCITT[2]
- **Max Frame**: 519 bytes · Max payload: 512 bytes
- **CPU Burden**: Zero, DMA + hardware flow control on both host and modem; CPU wakes only on complete frame
- **Compatibility**: Protocol-identical across all ARG comm modules, cellular, Wi-Fi, G3-PLC, Modbus



### Documentation
- [Module Datasheet (PDF)](https://www.automationresearchgroup.com/files/ARG_WiFiModem_DataSheet.pdf)
- [Host API Specification (PDF)](https://www.automationresearchgroup.com/files/ARG_CommonHostAPI_SpecSheet-2.pdf)


### Wi-Fi Modem, FAQ

**Q: What wireless standards does it support?**
802.11 b/g/n Wi-Fi (2.4 GHz) plus Bluetooth 4.2 Classic and BLE, on the u-blox NINA-W131 (ESP32). WPA2-Enterprise with EAP-TLS and PEAP is supported for corporate networks.

**Q: How does it connect to my product?**
Over the ARG Common Host API, a binary UART protocol identical across all ARG modules, so the host sends a payload without knowing the underlying radio.

**Q: Can I switch to cellular or power line later?**
Yes. Same footprint and same Host API across cellular, Wi-Fi, and G3-PLC, swap connectivity at production time with no host firmware changes.

**Q: Does it support over-the-air updates?**
Yes, a NOR flash staging partition allows full over-the-air module firmware updates; the modem validates, self-programs, and reboots autonomously.

---


# Capabilities


## Electronics Design

URL: https://www.automationresearchgroup.com/electronics-design/

Mixed-signal to power electronics, complete hardware design capability, in-house.

### Four disciplines. Deep in-house.
- **Embedded Systems**, Microchip/Atmel, Renesas, STMicro, ARM Cortex. Sensors, displays, motor controllers. In-house IP library built over 22 years.
- **Programmable Logic**, Xilinx FPGAs, mixed-signal SoCs and CPLDs. In-house Verilog IP and Mathworks Simulink-to-FPGA tool flow.
- **Power Electronics**, Brush, brushless, and stepper motor controllers. FOC, sensorless BLDC. FETs and IGBTs up to 2 kW.
- **Sensors & Analog**, Optical measurement, ADC signal paths up to 6 Gsps, multi-pole active filters, instrumentation front ends up to 2 GHz.


### What we bring to your project.

**Embedded Systems**
- Microchip/Atmel, Renesas, STMicro, ARM Cortex microcontrollers
- Sensors, transducers, motor controllers, displays, and communication peripherals
- In-house IP library and tool chains, 22+ years of custom designs available for rapid development
- Infineon motor control chipsets, FOC, sensorless BLDC, phase advance, field weakening

**Programmable Logic**
- Xilinx FPGAs, mixed-signal SoCs and CPLDs with full toolchains
- In-house Verilog IP: CANopen, RS232, SPI, digital FIR filters, DSP blocks
- Mathworks / Simulink tool suite for generating Verilog code from Simulink models

**Power Electronics**
- Brush, brushless and stepper motor controller designs
- FOC, sensorless BLDC, phase advance, field weakening, with in-house C source
- Power stage design, FETs and IGBTs up to 2 kW
- Motor control chipsets from PMD, Renesas, ST Micro, International Rectifier

**Sensors & Transducers**
- Photo multiplier tubes, photodiodes, UV spectrometers for optical measurement
- ADC signal path designs up to 6 Gsps
- Sensor fusion techniques with in-house C source files

**Analog & RF**
- Pre-amplifier and analog front-end designs up to 2 GHz
- Multi-pole active filter designs and instrumentation signal conditioning
- WiFi, BLE, Zigbee, Z-Wave, RFID, GPS, GSM/LTE, using modules or SoCs
- Digi XBee ecosystem, Nordic SoCs, u-blox modules, Telit SoCs

**Tool Chains**
- Altium Designer, schematic capture, simulation, PCB layout
- SolidWorks Electrical & PCB, integrated mechanical CAD interface
- In-house PCB fabrication, rework, and bring-up lab

---

## Mechanical Design

URL: https://www.automationresearchgroup.com/mechanical-design-services/

Precision enclosures to multi-axis motion platforms, from SolidWorks to shipped hardware.

### Four disciplines. One studio.
- **Machine Design**, Multi-axis gantry systems, stepper and belt drives through high-speed brushless linear motors. Full kinematics and dynamics modelling.
- **Enclosure Design**, SolidWorks sheet metal and plastics design. EMI/RFI mitigation, mold generation, CNC CAM, IP68 sealed enclosures for harsh environments.
- **Motion Control**, BLDC and linear motor systems, FOC, field weakening, phase advance. Renishaw and Sick encoder integration for sub-micron positioning.
- **Prototyping & Production**, In-house FDM/SLA printing, CNC machining, sheet metal brake. Low-volume injection molding through ARG’s manufacturing facilities.


### What we bring to your project.

**Machine Design**
- Multi-axis gantry systems for laboratory and industrial automation
- Stepper & belt drives through to high-speed brushless linear motor systems with linear encoders
- Motor selection calculations based on payload, velocity, and trajectory requirements
- Kinematics and dynamics modelling for robotic and automated platforms

**Enclosure Design**
- SolidWorks sheet metal design for electronics enclosures with EMI/RFI mitigation
- Plastics design with SolidWorks Plastics, mold generation and draft analysis
- CAM generation with SolidWorks CAM for in-house CNC machining
- Quick-turn prototypes via FDM/SLA 3D printing and short-run injection molding

**Motion Control Systems**
- BLDC and linear motor systems, FOC, field weakening, phase advance
- Performance Motion Devices (PMD) chipset integration
- Renishaw and Sick linear encoder integration for sub-micron positioning
- Multi-axis coordinated motion, interpolated paths and trajectory planning

**Prototyping & Short-Run**
- In-house FDM and SLA printing, CNC machining, sheet metal brake
- Low-volume injection molding with aluminum tooling
- Contract manufacturers in Pennsylvania, California, China, and India
- Supply chain management and BOM analysis for component sourcing

**Tool Chains**
- SolidWorks, 3D CAD, sheet metal, plastics, CAM, simulation
- SolidWorks Electrical, integrated wiring harness and schematic design
- Altium Designer, mechanical CAD interface for PCBA outline and keep-outs
- ANSYS / SolidWorks Simulation for FEA stress and thermal analysis

**Specialty Areas**
- IP68 / IP65 sealed enclosure design for harsh environments
- Precision fluid dispensing platforms, nanoliter accuracy dispensing systems
- Wearable and portable device packaging, compact, ergonomic enclosures
- Automotive-grade designs, vibration, thermal cycling and EMC compliance

---

## Manufacturing & Test

URL: https://www.automationresearchgroup.com/manufacturing-test/

In-house DVT builds to volume production, complete manufacturing capability under one roof.

### Four disciplines. End to end.
- **PCBA Assembly**, In-house pick & place, reflow, AOI. DVT and PVT builds on-site for fast iteration. Scale seamlessly to our Guadalajara facility for volume. IPC-A-610 workmanship standards.
- **Mechanical Fabrication**, CNC mill, FDM/SLA printing, laser cutting, sheet metal brake. Low-volume injection moulding. Mid- and high-volume across ARG facilities.
- **EOL Testing & Calibration**, Custom EOL test fixtures, bed-of-nails gang programmers, traceable sensor calibration. Automated pass/fail logging with serial number traceability.
- **Fulfilment & Logistics**, Kitting, labelling, drop-ship to your end customer. Branded packaging available. Our Guadalajara facility manages cross-border logistics for Mexico-manufactured product.


### What we bring to your project.

**In-House PCBA**
- Stencil printer, automated pick & place, reflow oven, capable of ~50 boards/week
- DVT and PVT builds done in-house for maximum iteration speed in early development
- Full inspection suite, AOI, microscope, hot-air rework and precision soldering
- In-house programming, JTAG, SWD, USB and UART-based production flash tools

**PCBA Scale-Up**
- Philadelphia, PA, quality-sensitive and higher-complexity assemblies
- Guadalajara, Mexico, ARG facility for larger-volume PCBA runs
- Seamless hand-off from in-house PVT to volume production without re-qualification
- US-based assembly available for regulated or sensitive product lines

**Mechanical Fabrication**
- Carbide CNC mill, aluminium, plastics and composite machining
- FDM and SLA 3D printing, rapid prototype iterations in hours not days
- Laser cutting, sheet metal, acrylic and composite panels
- Low-volume injection moulding with aluminium tooling for short-run plastic parts

**EOL Testing & Calibration**
- Custom-designed EOL test fixtures, functional, parametric and boundary-scan
- Bed-of-nails gang programmers for high-throughput production flashing
- Sensor calibration routines with traceable reference standards
- Automated pass/fail logging with serial number traceability
- Test coverage defined at DVT stage, no surprises at PVT or volume ramp

**Fulfilment & Logistics**
- Finished goods receiving, inspection, labelling and kitting
- Drop-ship direct to your end customer, branded packaging available
- Inventory management and reorder point tracking
- Our Guadalajara facility handles export documentation and cross-border logistics

**Quality & Compliance**
- IPC-A-610 workmanship standards applied across all assembly sites
- First Article Inspection (FAI) at each new production site and revision change
- Component traceability, lot codes, date codes and AVL management
- NCR and corrective action process for any production non-conformances

---

## Firmware & Software

URL: https://www.automationresearchgroup.com/firmware-software/

From bare-metal C to cloud-connected embedded systems, the full stack, owned in-house.

### Four disciplines. One team.
- **Microcontroller Firmware**, Embedded C for ARM Cortex, Renesas, STMicro. FreeRTOS, VxWorks. In-house BSPs, device drivers, and OTA update pipelines.
- **FPGA & DSP**, In-house Xilinx IP, 25+ years of combined team FPGA experience: digital filters, FFT engines, high-speed comms blocks. Vivado/ISE through Zynq SoCs.
- **Cloud & IoT**, AWS IoT Core, MQTT, custom OEM dashboards and REST APIs. From on-device storage to real-time cloud sync.
- **Protocols & Connectivity**, Industrial: Modbus, CANopen, EtherCAT. Wireless: BLE 5.x, LTE-M/NB-IoT. Power-line: G3-PLC, HPGP.


### What we bring to your project.

**Microcontroller Firmware**
- Embedded C for Microchip/Atmel, Renesas, STMicro, ARM Cortex processors
- UART, SPI, I2C, CAN, Ethernet, A/D, D/A peripheral drivers, in-house source library
- Bluetooth LE, Ethernet, Zigbee, Cellular and wireless protocol stacks
- FreeRTOS, TinyRTOS, VxWorks, 16/32-bit RTOS implementations
- In-house device drivers and board support packages (BSPs)

**FPGA IP**
- 25+ years of combined team experience developing Xilinx FPGA, SoC, and CPLD IP
- Digital filters, FFT engines, and high-speed data storage IP
- CANopen, RS232, SPI and custom digital communications IP
- Mathworks System Generator for Xilinx Zynq SoCs, model-based HDL generation

**Operating Systems**
- FreeRTOS, TinyRTOS, VxWorks on bare-metal ARM and RISC-V targets
- Linux, Debian and Yocto on ARM cores (ATSAM9x, i.MX, BeagleBone)
- Bootloader development and secure OTA firmware update pipelines
- Cloud connectivity, MQTT, AWS IoT Core, custom OEM dashboards

**Software Development**
- Visual Studio C#, desktop and Windows-based instrument control GUIs
- Java and Python, server-side and data processing applications
- Matlab / Simulink, model-based code generation for control algorithms
- REST APIs and cloud back-end integration for IoT data pipelines

**Tool Chains**
- IAR Embedded Workbench, Keil MDK, STM32CubeIDE, MPLAB X
- Xilinx Vivado / ISE for FPGA synthesis and simulation
- J-Link, ST-Link, PICKit, in-house debuggers and programmers
- Git version control with CI/CD pipelines for firmware releases

**Protocols & Connectivity**
- Industrial: Modbus RTU/TCP, CANopen, J1939, EtherCAT
- Wireless: BLE 5.x, Wi-Fi (ESP32, Nordic), Cellular LTE-M / NB-IoT
- Power line: G3-PLC, HPGP for smart grid and building automation
- Nordic nRF91 / nRF52 series, ARG has production-deployed modules

---


# Cloud Platform, Company & Contact

- [ARG MQTT Cloud Platform](https://www.automationresearchgroup.com/mqtt-platform/): ARG's MQTT cloud platform on AWS IoT Core, per-device X.509 certs, structured topics, and a Lambda + DynamoDB backend. Your product is cloud-connected the day firmware is flashed.
- [ARG OTA Update Platform](https://www.automationresearchgroup.com/ota-platform/): ARG's OTA update platform, secure, SHA256-verified firmware delivery over API Gateway and private S3. Push a new binary with one command; devices self-program in the field.
- [About Automation Research Group](https://www.automationresearchgroup.com/about/): Automation Research Group (ARG) is a full-stack embedded systems ODM based in Philadelphia, PA. 22+ years of hardware design, firmware, and manufacturing, electronics, mechanical, and cloud under one roof.
- [ODM & OEM Product Portfolio](https://www.automationresearchgroup.com/project-portfolio/): ARG's portfolio of ODM and OEM products, iAQ-Pro air quality instruments, Genesis 360 industrial controller, and 35+ client products shipped across IoT, automotive, medical, and industrial markets.
- [Production Facilities](https://www.automationresearchgroup.com/lab-facilities/): ARG's fully-equipped lab: electronics and mechanical prototyping, PCBA assembly, lab-grade bench instruments, EOL test and calibration, DVT and PVT under one roof in Philadelphia.
- [ARG Instruments Product Range](https://www.automationresearchgroup.com/products/): ARG Instruments: iAQ-Pro, iAQ-Pro D, mmW-Pro, PM3, GSB-01, and communication modules. Professional-grade instruments for environmental monitoring, energy management, and gas safety.
- [How We Work](https://www.automationresearchgroup.com/how-we-work/): ARG's product development process, one NRE, prototypes and revisions included, four phases from concept to volume. One partner, total accountability.
- [Capabilities](https://www.automationresearchgroup.com/capabilities/): ARG's full-stack capabilities: electronics design, firmware, mechanical design, manufacturing, and test, all coordinated in-house in Philadelphia, PA. No handoffs between vendors.
- [Get Started](https://www.automationresearchgroup.com/get-started/): Start your hardware project with ARG. Tell us about your product and we'll follow up within one business day with a structured proposal covering scope, timeline, and budget.
- [Request Pricing](https://www.automationresearchgroup.com/request-pricing/): Request pricing for ARG instruments, iAQ-Pro, iAQ-Pro D, mmW-Pro, PM3, PM1, GSB-01, Cell Modem, Wi-Fi Modem, and G3-PLC Module. Volume and OEM pricing available.