Duct and room mount humidity/temperature transmitters with 4-20mA output. Dwyer Series RHP, RHT, HTO, HTD, and WHP humidity and temperature transmitters for HVAC applications.
Series RHP room mount humidity/temperature transmitter. 4-20mA outputs for both humidity and temperature. For HVAC room sensing.

Dwyer Series WHP wall-mount humidity/temperature transmitter. Compact design for room applications.
Series RHT duct mount humidity/temperature transmitter. 4-20mA outputs. For HVAC duct sensing.
Series HTO outdoor humidity/temperature transmitter. NEMA 4X enclosure for outdoor installations.
Series HTD duct humidity transmitter with temperature output. Probe-style for duct insertion.