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Applications & Features

• Simultaneously detect indoor air quality, including multiple VOC, CH2O, PM2.5/PM10, CO2, T/RH, up to 7 parameters. Model IAQM is for wall mount and IAQMG can be wall or ceiling mount

• VOC: detect various contaminants (VOCs), including wood, paint and others produced by toluene, cigarette, ammonia odor, CO, alcohol, natural gas and even body smell. Low power consumption and good T/RH compensation for high accuracy

• CH2O: good accuracy, fast response, excellent anti-interference, extremely low power consumption and good temperature and humidity characteristics, stable and reliable, no need for regular calibration

• PM2.5/PM10: detect the PM2.5 and PM10 concentration in the air with particle sizes 0.3~10μm. The sensor has good long-term stability, high consistency accuracy, real-time response and supports continuous service mode. MBTF is 3+ years for continuous service (service life can be 8-10 years in typical stable concentration change working conditions and auto(intermittent) work mode), free maintenance

• CO2: detect the CO2 concentration of the air with ABC (Automatic Baseline Correction) algorithm, accurate measurement and temperature compensation, good long-term stability and reliability, fast response

• T/RH: use high-precision digital temperature and humidity sensor, ensure good measurement

• Optional red/yellow/green LED indicating the poor/fair/good air quality. The alarm point or interval can be flexibly set through RS485/Modbus. The three-color ring enclosure for IAQMG is patented design by TEREN

• Power and outputs have over voltage and reverse polarity protection, high reliability and anti-interference capability

• All electrical terminals are on the inside bottom, avoid any possible destroy to PCB when wiring

Specifications

VOC

Sensor: High performance metal oxide semiconductor sensor, min. 5~7 years life span

Range: 0(400) ~2000ppm equivalent CO2

Accuracy: Typical consistency accuracy ±10%FS@25°C

CH2O

Sensor: High performance electrochemical sensor, >3 years life span

Range: 0~1000ppb

Accuracy: ±10%FS@25°C

PM2.5/PM10

Sensor: Laser particulate matter sensor, detected size 0.3~10 um 

Service Life: MBTF more than 3 years in continuous service mode, service life up to 8-10 years in auto (intermittent) service mode

Measuring range: >1000μg/m3

Range: PM2.5: 0~500±ug/m3, particle size 0.3~2.5um

             PM10:0~600ug/m3, particle size 0.3~10um

Accuracy: ±10 ug/m3 @0~100ug/m3, ±10% reading

                 @100~500ug/m3@25°C/50%RH, see accuracy curve

Resolution: 1ug/m3

Response time: in continuous service mode, sample time<1s, general response time<10s

CO2

Sensor: NDIR sensor, with ABC algorithm, >15 years life span

Accuracy: ±50ppm±5% reading @10~40°C

Response time(T90): <120s (30cc/min, low airflow)

Drift: <±10ppm/year

Range: 0~2000ppm (measurement range 400~2000ppm)

Temperature

Sensor: Digital temperature sensor

Measurement range: -40~125°C

Accuracy: typical <±1.0°C@10~40°C; <±1.5°C @10~40°C(With CO2 detection)

Repeatability: 0.1°C

Response time: typical 10~30s (25°C, low airflow) 

Drift: <±0.04°C/year

Relative Humidity

Sensor: Digital capacitance sensor

Range: 0~100%RH

Accuracy: typical ±5%RH @ 25°C/20~80%RH

Repeatability: 0.1%RH

Hysteresis: <±1.0%RH

Response time: typical 10s (25°C, low airflow)

Drift: <±0.25%RH/year

Power: 16~28VAC/16~35VDC

Output: RS485/Modbus, R/W enable, 9600 bps

Warm up time: 15 min

Working environment: 0~50°C, 10~90%RH (Non-cond.)

Storage temperature: -20~60°C

Housing: fire retardant PC (UL94V-0), Protection: IP30

Weight: 170~210g

Approval: CE

Models

For LED alarm function, add the suffix -LED at the end of the model.

Note:

1. VOC volatile organic compounds, include over a thousand kinds of component, are widely used in various industries and has great impact on human health, may affect the human liver, kidney, brain and nervous system, resulting in memory loss and other serious consequences, and even cause cancer. 

2. The VOC sensor could detect varies of VOC components. VOC measurement range 0~1000ppb (isobutene), equivalent to 400~2000ppm of carbon dioxide.

3. The CH2O sensor could detect only Formaldehyde of 0~1000ppb.

4. Exposed to 0.5~1.0 ppm VOC concentration environment have little impact on most people health; exposed to 1.0~10 ppm may have obvious irritation symptoms on human and cancer rates rise 50% to 90%; exposed to above 10 ppm may have serious impact on human health or life threatening.

5. China regulations specified the average 8 hours TVOC limit 0.50~0.60 mg/m3 (equivalent to about 500 ppb) and CH2O limit 0.08~0.10 mg/m3 (equivalent to about 60-75 ppb).

6. VOC concentration guidelines and recommendations, mainly refer formaldehyde for reference:

PM2.5/10 Typical consistency accuracy curve: max deviation (%)