Description: Qingping Air Detector Lite CGDN1 CO2 PM2.5 PM10 Temperature Humidity Monitor BT Gateway USB Charging Work With Mijia APP switch HomeKit Built-in 2000mAh Lithium Battery APP Control Features: CO2/PM2.5/PM10/Temperature/Humidity Monitor Large capacity, built-in 2000mAh Lithium Battery You can switch readings displayed on the screen just with finger touch BT gateway, compatible with other smart xiaomi devices Support Siri / Xiaoai(Only CN)Voice control Specification: Item name:Qingping Air Detector Lite Model:CGDN1 BT version: BT5.0 Measuring range: PM2.5/PM10:0~500ug/m Temperature: 0C~50C Humidity: 0~99%RH(Non-condensing environment) CO2: 400~9999ppm Battery:Lithium 2000mAh/3.7V Interface: USB-C Standby time: 7h Screen size: 59.9*49.9mm Product size: 63.6*46*54.6mm Product weight: 143g Note: The battery usage may be slightly different due to the actual usage. There is a little of difference according to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Please confirm whether you can use the voltage or not in your country, thank you. Package List: 1*Qingping Air Detector Lite 1*USB cable 1*User manual