-Material:Metal+ABS

-Product Size：131*78*67.5MM

- 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
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 : 
-Integrated detection with CO2/Temperature/Humidity/PM2.5/PM1.0/PM10/HCHO/TVOC
-Auto calibration,Exceeding Alarming with auto detection and measuring
-Different interface switching.
- History Records save
-Screen off time adjust , save power .
- Alarm Clock 
-Temp unit:  Celcius and Fahrenheit  Switch      
-Alarm sound set: On and off

Package details： 
Product N.W.：400g 
Product G.W.：550g 
Package Dimension：24*18*5.5cm
CTN Dimension：43.5*33*37cm
CTN Weight:13.5 KG
20sets/CTN