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It uses digital pocess technology
Different type Impact device and support ring
model number: AI-8C
DIN standard
AZ77232 Wall-Mounted CO2 Humidity Meter Carbon Dioxide Tester Indoor Air Quality Monitor with Relay Refractometers It uses digital pocess technologyBrand: Graigar Features: Super large LCD display CO2 value and temperature simultaneously; Designed with NDIR (Non Dispersive Infrared) wave guide technology; ABC (Automatic Background Calibration) preset on for long time drift compensation; Easy to manually calibrate CO2 at fresh air; Digital wall mountable desktop type; Warning Carbon Dioxide level; Alarm output drive relay to control system; Display 8 hrs TWA value (time weighted average) or 15
US$ 59.99
US$ 22.99
US$ 29.99
