It is a CO2 Meter that  built in infrared (NDIR) sensor real-time monitoring of Carbon Dioxide (CO2),Temperature and Humidity . if the CO2 concentration reaches the alarm value, then the monitor will trigger a danger alarm.With the historical recording function, it automatically stores detection data for a period of time, allowing you to easily trace the changes in air quality.
It supports intelligent connection and convenient operation through Tuya WiFi, after connecting your phone, you can view real-time data anytime and anywhere.

-Material:ABS

-Product Size：145*78*97.2MM

-4.3 inch LCD screen display ,History Records  save

- Temperature unit between Celcius and Fahrenheit  Switch 

-CO2 Technology :  infrared ( NDIR)
-WiFi  TUYA APP ,Transfer datas to mobiles phons ,support  Android and Apple phones  ,also support all kinds of languages

- CO2  detection range:  400ppm  -5000 ppm
-CO2 Alarm  value : 1000ppm

-CO2 Alarm  on /off function(if users do not like alarm ,people can turn it off by hand setting )
-Power supply：rechargeable  Li-battery 3000mah
-Included:Main Unit+manual+charging cable

Advantage : 
-WiFi  TUYA APP,datas transfer to mobile phones  to check CO2 values Wireless
-Integrated detection with CO2/Temperature/Humidity
-Auto calibration
-support History Records  save  
-support Temperature offset.
-Exceeding Alarming with auto detection and auto measuring 
-Alarm sound can be turned  off / on  by hand operation
-Color led changes for different Co2  Values

Package details： 
Product N.W.：225g 
Product G.W.：470g 
Package Dimension：18.7*11.5*10.3cm
CTN Dimension：56*28*42cm 
CTN Weight: 10.05kg 
20sets/CTN