Usage Tips:Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si - This versatile indoor air quality detector can accurately measure real-time levels of CO2, CO, HCHO, TVOC, PM2.5, PM10, ,temperature and relative humidity. Additionally, you can view real-time data through the mobile APP. Accurate and Reliable - Equipped with latest semiconductor/Infrared/electrochemical detection technology, the air quality meters delivers precise readings of harmful pollutants such as PM2.5,PM10,HCHO, VOCs, and CO2 levels in your home, ensuring your peace of mind regarding the air you breath. Real-time Display - Featuring an intelligent infrared NDIR sensor, the device allows you to monitor air quality changes and you can also watch on your phone. This empowers you to take necessary actions to enhance the air quality in your surroundings. Easy to Use - Once activated, this indoor air quality monitor automatically measures the ambient air quality . Designed for simplicity, our indoor air quality meter can be operated by anyone, anywhere. 2000mAh Rechageable Battery - The air quality tester incorporates a built-in 2000mAh rechargeable battery with a substantial capacity. Its portability enables easy relocation within your home or office.When using this monitor for a long time, please use the power adapter to power it. Colour:As Shown Material:ABS+PP Package Contents: 1set * air quality monitor indoor Only 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.