-Material:ABS
-Product Size：270* 118*35mm
-Led Screen display

-CO2 Technology :  infrared ( NDIR)
Concentration unit for CO2:PPM
-Detection method for Noise : Electret Condenser microphone
Concentration unit for Noise : dB
 -Temperature unit : Celcius
-CO2 Detection range:  400-5000 ppm                                                                                 
-CO2 Alarm  value : 1000ppm
-Support hand Setting  CO2 alarm threshold from 800ppm-2000ppm.

-CO2 Alarm  on /off function(if users do not like alarm ,people can turn it off )
-Power supply：rechargeable  Li-battery 2000mah，includding USB Chargeing cable 3M  
-Included:Main Unit+manual+charging cable

Advantage : 
-Integrated detection with Noise/CO2/Temperature/Humidity
-CO2 Auto calibration
-Exceeding Alarming with auto detection and auto measuring
-CO2 Alarm sound can be turned  off / on  by hand operation
-Screen brightness can be adjusted by hand  
-Color Smile face , very realistic.
-Large screen ,Wall mount design 

Package details： 
Product N.W.：320g 
Product G.W.：550g