Description Product Features High precision: Large LCD display with NDIR (non-dispersive infrared) is a new infrared sensor that works quickly and stably.Temperature unit between Celcius and Fahrenheit Switch -24 hours real time monitoring. Convenient: The air monitor can be placed on the table or hung on the wall, and can be installed as needed. Rechargeable carbon dioxide monitor: The air quality monitor has a built-in 2000mAh lithium battery, which can last for a long time, and it also has a USB cable for easy charging. Package content: air monitor, USB cableManual. Air Quality Monitor: The carbon dioxide monitor can detect CO2, temperature and humidity, it is usually used in places with high concentration of carbon dioxide, such as schools, greenhouses, office buildings, factories, hotels, transportation lines, etc. Product specifications Wall Mount CO2 Meter -Common Screen display -CO2 Technology : infrared ( NDIR) -Temperature unit between Celcius and Fahrenheit Switch -24 hours real time monitoring. -Detection range: CO2 ( 400-5000 ppm) -Power supplyrechargeable Li-battery 2000mah includding USB Chargeing cable 3M -Material: ABS -Color:Black -Product size: 270*90*35 MM -weight:268g Package includes 1*Main Unit 1*Manual 1*Charging cable