The UEi AQM4 meter measures CO2 levels, CO levels, air temperature, dew point, wet bulb temperature and humidity. It is an ideal instrument for indoor air quality (IAQ) diagnosis. The portable AQM4 uses NDIR (non-dispersive infrared) technology for CO2 measurement to ensure reliability and long-term stability and it is useful in verifying HVAC/R systems performance and air ventilation control.

The UEi AQM4 meter measures CO2 levels, CO levels, air temperature, dew point, wet bulb temperature and humidity. It is an ideal instrument for indoor air quality (IAQ) diagnosis. The portable AQM4 uses NDIR (non-dispersive infrared) technology for CO2 measurement to ensure reliability and long-term stability and it is useful in verifying HVAC/R systems performance and air ventilation control.