YongCo Detector Air Monitor CO2 Meter Carbon Dioxide Detector Temperature Humidity Monitor CO2 Alarm

and There are 9 types you can choose, brown 3 in 1, brown 4 in 1, brown 5 in 1 , 3 in , 4 in 1 , 5 in 1 , white 3 in 1 , white 4 in 1 and white 5 in 1, among , 5 in 1 type can with for smart phones. Real-time and real-time display of carbon dioxide concentration per cubic meter. It can detect and display the temperature and humidity of the environment to help the user understand the environment. It is suitable for office, home, gym and other occasions, with a wide of applications. Intelligent color screen display, clear numbers, easy to identify and read.