Features 1.Designed for testing the indoor air quality IAQ (CO2, temperature, humidity). 2.Large LED screen, easy to read values. 3.Built-in infrared CO2 sensor, with the function of self checking; 4. The CO2 concentration measurement is more accurate, more reliable. 5.The CO2 sensor up to 10 years of service life. 6.Temperature and humidity compensation function (to CO2 and temperature and humidity) make more accurate readings. 7.All analog 4 ~ 20 ma output optional, can transport CO2, central control room to temperature and humidity values. 8.Two-way relay is optional, but automatic linkage fresh air system. 9.Modbus RS485 communication is optional, can transport CO2, temperature and humidity. 10.Three color background light hint excessive indoor Co2 concentration. 11.Wall mounted, easy and convenient. Technical Parameters 1.CO2 measurement range: 0-2000/5000 PPM 2.Test principle: NDIR nondispersive infrared principle 3.Temperature range: - 10-50 °C 4.Humidity range: 0-100% RH 5.Infrared sensor life: 10 years 6.Temperature sensing element: NTC thermistor Moisture element: 7.Back light scene: three color display 8.Temperature and humidity calibration: automatic calibration and compensation 9.Accuracy: + / - 5% of 22 °C 10.Resolution: CO2:1 PPM temperature: 0.1 °C humidity: 0.1% RH 11.Response time: T90 < 60 s 12.Signal refresh: 1 s 13 Analog output signal: route 1 calibration,(4 ~ 20 ma output, optional); route 2 switching value Maximum current 3 A(optional); RS485 (communication rate 9600, optional) 14.Power supply : 24 v DC 15.size: 86 mm x 86 mm
Features 1.Designed for testing the indoor air quality IAQ (CO2, temperature, humidity). 2.Large LED screen, easy to read values. 3.Built-in infrared CO2 sensor, with the function of self checking; 4. The CO2 concentration measurement is more accurate, more reliable. 5.The CO2 sensor up to 10 years of service life. 6.Temperature and humidity compensation function (to CO2 and temperature and humidity) make more accurate readings. 7.All analog 4 ~ 20 ma output optional, can transport CO2, central control room to temperature and humidity values. 8.Two-way relay is optional, but automatic linkage fresh air system. 9.Modbus RS485 communication is optional, can transport CO2, temperature and humidity. 10.Three color background light hint excessive indoor Co2 concentration. 11.Wall mounted, easy and convenient.
