2014 Newest Indoor Air Quality Monitor for CO2,Temperature, Humidity

Carbon Dioxide

Sensing element

Non-Dispersive Infrared Detector (NDIR)

CO₂ measuring range

0~2000ppm/ 0~5,000ppm optional

CO₂ Accuracy @22°C(72°F)

±40ppm + 3% of reading or ±75ppm (whichever is greater)

Temperature dependence

0.2% FS per°C

Stability

<2% of FS over life of sensor (15 year typical)

Pressure dependence

0.13% of reading per mm Hg

Calibration

ABC Logic Self Calibration Algorithm

Response time

<2 minutes for 90% step change typical

Signal update

Every 2 seconds

Warm-up time

2 hours (first time) / 2 minutes (operation)

Temperature

Humidity

Measuring range

0°C~50°C(32°F~122°F) (default)

0 ~100%RH

Accuracy

±0.4°C(20°C~40°C)

±3%RH (20%-80%RH)

Display resolution

0.1°C

0.1%RH

Stability

<0.04°C/year

<0.5%RH/year

General Data

Power supply

24VAC/VDC

Consumption

1.8 W max. ; 1.2 W avg.

Analog outputs

1~3 X analog outputs

0~10VDC(default) or 4~20mA (selectable by jumpers)

0~5VDC (selected at placing the order)

Modbus communication (optional)

RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address.

Operation conditions

0~50°C(32~122°F); 0~95%RH, non condensing

Storage conditions

10~50°C(50~122°F), 20~60%RH non condensing

Net Weight

240g

Dimensions

130mm(H)×85mm(W)×36.5mm(D)

Installation

wall mounting with 65mm×65mm or 2”×4”wire box

Housing and IP class

PC/ABS fireproof plastic material, protection class: IP30

Standard

CE-Approval