Digital HHC201 and HHC210 are, respectively, a dual thermocouple thermometer and IR thermometer with laser sighting. While HHC230 measures light intensity, HHC250 performs non-contact optical RPM measurement. Hygro-anemometer HHC261, used to measure air flow and humidity, offers ambient measurement, wind chill indicator, and integrated wet bulb flow vane. Differential (HHC280) and absolute pressure (HHC281) manometers are also available, and all meters have portable, rugged design.