CO2 meter, also been called as CO2 detector or Carbon Dioxide detector, it’s the device that can detect the presence of Carbon Dioxide (CO2), which had been widely used for indoor air quality measurement. AZ CO2 & Temperature Meter was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring Instrument. AZ CO2/Temp. Meter features: *Low cost portable meter checking indoor air quality in the office *Dual display 2 parameters simultaneously: CO2, temperature *Warning carbon dioxide level *Big LCD display with high resolution *Design with NDIR(Non-Dispersive Infrared) waveguide technology sensor *Manual calibration recommended