Sensors: Dual-channel NDIR sensor, temperature and humidity sensor Carbon dioxide detection range: 400 ~ 5000PPM (expandable to 0~10000PPM) Carbon dioxide accuracy: ±(50PPM + 5%*reading) Temperature detection range: -20 ~ 80℃ Temperature detection accuracy: ±0.3℃ Humidity detection range: 0 ~ 99%RH Humidity detection accuracy: ±3%RH Product dimensions: 120*99.2*40mm Signal output: RS485/ 0~5V/ 0~10V/ 4~20mA, LTE-CAT1/WiFi can be added

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