This series of IAQ monitors can measure ambient temperature, relative humidity (rh), wet bulb, dew point, differential pressure, barometric pressure, CO₂, CO, O₂, ozone, formaldehyde, volatile organic compounds, NO, NO₂, SO₂, and H₂S. 

The BTU4500-NOx Hand-Held Combustion Emissions Analyzer measures NO_x from high-efficiency and condensing boilers, burners, engines, turbines, kilns, furnaces, incinerators, and other industrial combustion processes. 

The BTU1500 Hand-Held Combustion Analyzer is a rugged unit for high-efficiency and condensing boilers, burners, engines, turbines, furnaces, and other combustion applications. 

The AQ Pro provides the IAQ professional the latest in IAQ monitoring and real-time data logging for IAQ analysis in hospitals, buildings, schools, labs, clean rooms, airports, and more. 

With a large ice-blue backlit display, the LV110 vane thermo-anemometer is easy to read in light or dark environments. 

The BTU900-NOx residential combustion analyzer can be used for boiler and burner setups, servicing, and maintenance. 

Portable, the HM100 Pin Moisture Meter detects the moisture levels of materials in a variety of different markets and applications.