Features: *High-Quality Material: Made of high-quality material, wear-resistant, not easy to break, durable and can be used for a long time. *Multi-functional: This airs detector can detect temperature, humidity, CO2, VOC, formaldehydes, and the five-in-one design makes it more convenient for you to use. *Real-time detection of home airs environment: You can view home airs environment data in real time through the application, which is simple and easy to use. *Smart Control: Sync your airs detector with other smart homes devices to clean the airs in a seamless, integrated way. *Wide Application: Suitable for a variety of scenarios, such as home, hotel, office, RV, etc., and can be integrated into various decoration styles. Description: Material: PVC Size: 90*90*35mm Working temperature: -20 DegreeC~85 DegreeC Working voltage: 5V Working current: 10~496mA Power supply mode: USB 5V1A Communication protocol: WIFI 2.4G Formaldehydes detection range: 0~10.00mg/3 VOC detection range: 0~99.9ppm CO2 detection range: 0~1000ppm Temperature detection range: 0~60 DegreeC Humidity detection range: 0~95% Package List: 1 x Airs Detector