Product Introduction: Temperature & Humidity: Humidity Clearly display the detected real-time temperature and humidity.Air Quality Index: Adopts superior detection module, with high accuracy, stable performance, can accurately detect air quality values. Allowing you to more accurately and more figuratively know the current air conditions.PM2.5&PM10: and PM10 have become the primary pollutants in ambient air pollution, please pay attention to the monitoring of PM2.5 and PM10.LCD Screen: The LCD screen displays time, temperature and humidity, carbon dioxide, PM2.5, PM10 and clearly. ,Use in multiple scenarios: Widely using in multiple scenarios: greenhouse vegetables, business offices, house life, production warehouse and etc...Specification:Product Model: PTH-9AWAir Quality Level (): 0 ~ 500Carbon Dioxide: 400 ~ 5000 ppm [(50ppm + 5%)]Temperature: -10C ~ 40C (1.5) / 14 ~ 104 (2.7)Humidity: 20 ~ 99 % RH (5 % RH)PM10: 0 ~ 1000 g/m (10%)PM2.5: 0 ~ 1000 g/m (10%)Wireless Connection: Wi-Fi (only for 2.4GHz network)APP: TUYABattery: Li-ion Cylindrical Battery/1Li-ion 18650C (2400mAh)Input: 5 V1ANote: You can only switch the temperature unit and 12/24 hour timedisplay format in the TUYA APP.Material: plasticcolour: blackPackage Contents:1 x PTH-9AW CO2 DetectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.