Duct Probe Wall Mount Room Humidity Transmitter

The HT-690x Series Room Humidity Transmitters use a highly accurate and reliable Thermoset Polymer based capacitance humidity sensor and state-of-the-art digital linearization and temperature compensated circuitry to monitor humidity levels. They are available in both wall or duct mount packages and Relative Humidity (RH) accuracy of ±2% or ±3%. You can field select the RH output as a linear 4 mA to 20 mA, 0 VDC to 5 VDC or 0 VDC to 10 VDC signal. The duct humidity sensor is encapsulated in a 9 in. (230 mm) long by 0.5 in. (12.7 mm) diameter 304 S/S probe with a 60 micron HDPE filter to protect the sensor from contaminants.