DM72C-Wifi CO2 Meter This device functions as an air quality monitor, designed to detect Carbon Dioxide (CO2), Temperature, and Humidity. It features integrated sensors that offer real-time tracking of CO2 levels, temperature, and humidity, showcasing this information on its display. Features of DM72C-Domestic Wifi CO2 Meter CO2 Meter with TUYA WIFI APP; Transfer to mobile phones -Wifi connect; CO2, Temperature, Humidity Parameters of DM72C-Wifi CO2 Meter Wifi connect, built in Tuya moduel, tuya app History Records save, 4.3 inch LCD display temperature unit between Celcius and Fahrenheit Switch CO2 Technology infrared ( NDIR) Temperature and Humidity sensor LCD screen display, 24 hours real-time monitoring Detection range CO2 test range 400ppm -5000 ppm Power supply rechargeable Li-battery 3000mah As a hardness tester company, we will do our best to meet all the needs of customers.