-Material:ABS
-Product Size：145*78*97.2MM
-WiFi  TUYA APP ,Transfer datas to mobiles phons ,support  Android and Apple phones  ,also support all kinds of languages
- Temperature unit between Celcius and Fahrenheit  Switch

-CO2 Technology :  infrared ( NDIR)

-PM2.5 Sensor technolology : Laser Scattering

-HCHO/TVOC ：Electrochemistry sensor
-Detection range:

CO2 Detection range:  400-5000 ppm
PM2.5 Detection range : 0-999 ug/M3
AQI Detection range: 0-500
HCHO Detection range:0.001-1.999Mg/M3
TVOC Detection range: 0.001-9.999Mg/M3
-History Records  save.
-CO2 Alarm  value : 1000ppm   
-CO2 Alarm  on /off function(if users do not like alarm ,people can turn it off by hand operation)
-Power supply：rechargeable  Li-battery 3000mah includding USB Chargeing cable
-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/PM2.5/HCHO/TVOC/AQI
-Auto calibration
-Exceeding Alarming with auto detection and measuring
-Different interface switching.
- History Records save
-Temp unit:  Celcius and Fahrenheit  Switch      
-Alarm sound set: On and off

Package details： 
Product N.W.：225g 
Product G.W.：480g 
Package Dimension：18.7*11.5*10.3cm
CTN Dimension：56*28*42cm
CTN Weight:10.8KG
20sets/CTN