1. When receiving our air detector, there is a protective film on the screen, you need to tear off the plastic film on the screen, the protective film is the manufacturer to prevent friction, scratches, pollution, etc. during handling, so you need to tear off the protective film when using our products.
2. When our air detector has a 120-second countdown after turning on, the sensor collects data, and the data on the screen will keep jumping, which is a normal phenomenon.
3.If the air detector has a dripping sound, double-click the key, reset the CO2,TVOC data, wait five minutes after the data will be displayed slowly, wait for 20 minutes, basically stable, can be used normally.