INDOOR AIR QUALITY INSTRUMENTS
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.
ARG INSTRUMENTS
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.
Parameters measured
Sensor lifetime
Duct mount enclosure (L)
Universal AC power
BUILT FOR HVAC INTEGRATION
Designed for HVAC integrators and building automation engineers who need accurate, continuous IAQ data without disrupting existing infrastructure.
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PM0.5 through PM10 — MCERTS certified by the UK Environment Agency. Both mass concentration (μg/m³) and number concentration. Sensor lifetime > 10 years.
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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.
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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.
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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″ |
APPLICATIONS
From smart buildings to industrial facilities, the iAQ-Pro-D delivers accurate, actionable HVAC data 24/7.
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Continuous in-duct data for building automation and preventive maintenance. Filter condition monitoring, airflow verification, HVAC fault detection, and energy efficiency optimization.
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Real-time data for ASHRAE 62.1, WELL Building, and LEED certification. Building commissioning, healthy building certification, tenant IAQ reporting, continuous compliance logging.
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Scalable monitoring across large buildings using existing HVAC infrastructure. Multi-zone IAQ monitoring, no new wiring, BMS and cloud dashboard integration, retrofit without disruption.
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Hybrid PLC+RF output connects to BMS gateways and building controllers. Configurable reporting intervals, cloud or on-premises dashboard, modular sensor complement.
RESOURCES
Get pricing for single units, volume orders, and OEM HVAC integrations.