Wall-mounted digital meter measures ambient level of carbon dioxide (CO2) to monitor indoor air quality and performance of heating, ventilation, and air-conditioning (HVAC) systems;Displays current CO2 levels, long-term average CO2 levels measured over an 8-hour period, and short-term average CO2 levels measured over a 15-minute period;Alarm notifies operator when CO2 levels reach or exceed a preset threshold;When connected to a building's HVAC system, the meter's built-in relay activates the HVAC system if CO2 levels reach or exceed the alarm's upper-limit threshold;Liquid crystal display (LCD) shows ambient CO2 levels, as well as air, wet bulb, or dew point temperature and humidity;CO2 measurement up to 9999 ppm, temperature, relative humidity, dew point and wet bulb;High performance low drift sensor designed with NDIR (non-dispersive infrared) waveguide technology with automatic background calibration;Audible alarm threshold setting to setup warning against carbon dioxide level with output drive relay to control air flow system;Recording of maximum, minimum and average values with recall function;Meter, manual, power adapter 100-240V AC

• Amprobe CO2-200 Wall-Mounted CO2 Meter

Amprobe CO2-200 Wall-Mounted CO2 MeterAmprobe