RHPLC-3N1B is a series RHPLC wall mount humidity/temperature transmitter is a compact economical sensor for the building automation marketspace. The stylish housing is well-vented to provide air flow across the sensor to improve measurement accuracy. Each unit utilizes a capacitive polymer sensing element to deliver a proportional analog output. A combination humidity and temperature model can be configured with current, voltage, RTD, or thermistor output. Typical applications include air economizers and room comfort monitoring.