Model: Az7752
Product name: Az7752 CO2/temp. Meter
Features:
Low cost portable meter checking poor indoor air quality in office
Dual display 2 parameters simulatneously: CO2, temperature
Warning carbon dioxide level
Big LCD display with high resolution
Design with ndir (non-dispersive infrared) waveguide technology sensor
Manual calibration is recommended
Model: Az7722
Product name: Az7722 wallmout CO2/temp. /rh meter
Features:
Digital wall mountable / desktop type.
Warning carbon dioxide level.
Super large LCD display CO2 value.
Ndir (non-dispersive infrared) waveguide technology with abc(automatic background calibration )
Alarm output drive relay to control system
Long time drift compensation
Audited Supplier 
){kind=link}