The Model THI-10 from Dwyer Instruments Inc., Michigan City, IN, is a handheld digital thermohygrometer that measures RH and ambient temperature and stores up to 99 readings in nonvolatile memory. Features include selectable engineering units, max./min. functions, and dew-point and wet-bulb temperature measurements. The device is suited for use by HVAC technicians.
Dwyer Instruments Inc.