Dwyer Series WHP wall-mount humidity/temperature transmitters for room sensing in HVAC and building automation applications.

Dwyer Series WHP-1 wall-mount humidity transmitter. 4-20mA output, 0–100% RH range.
Dwyer Series WHP-2 wall-mount humidity/temperature transmitter. Dual 4-20mA outputs for both humidity and temperature.
Dwyer Series WHP-3 with LCD display and configurable outputs.