3 in 1 Carbon Dioxide Detector Air Quality Monitor 2pcs Temperature Humidity Air Analyzer for CO2 Digital CO2 Meter Home Office Use

Features:
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 temperature. CO2 detection range: 400-6000PPM. Temperature detection range: 0-50℃. Humidity detection range: 0-99%RH.
CO2 detector: The color ring will change according to the current CO2 concentration.USB charging: Connect the power supply and then it will start to work.
Any problems, feel free to contact us. Honor to serve you!