Features High accuracy: the measurement accuracy of the detection module is high and the accuracy is within the range of 50ppm. CO2 detection: The module allows intelligent adjustment of the indoor ventilation system according to the CO2 concentration, keeping the air healthy. Mini Size This CO2 detection module is compact, easy to install and convenient, with a 2.54mm plug connector for power and communication pins. DUAL USE This CO2 detection module can detect both temperature and humidity via built-in sensors, making the module versatile. Wide Measurement Range The measurement range of the CO2 detection module is 400-2000ppm, which is convenient. Specification: Item Type: Carbon Dioxide Sensor Module Material: PCB Supply voltage range: 2.4-5.5V Measuring range: 400-2000ppm Accuracy: ±50ppm Relative humidity measurement range: 0-95%RH Typical Relative Humidity Accuracy: 6%RH Package list: 1 x Carbon Dioxide Monitor Sensor Module 1 x pin head Package List 1 x Carbon Dioxide Monitor Sensor Module 1 x Pin Header