3 in 1 Carbon Dioxide Detector Air Quality Monitor Humidity Air Analyzer for CO2 Digital CO2 Meter for Home Office

Color screen display: The color screen display makes it easier for you to read and identify in darkness. Wide application: The portable size enables you to take it anywhere you go. It can be used at the home, office, shopping mall, hotels and etc. 3 in 1: It can detect real-time CO2 concentration, humidity, and . CO2 detection : 400-5000PPM. detection : 0-50℃. Humidity detection : 0-99%RH. CO2 detector: The color ring will change according to the current CO2 concentration.