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This humidity sensor is designed for industrial drying

| By Mary Page Bailey and Gerald Ondrey

The HYT 939P temperature and humidity sensor (photo) is equipped with a PTFE filter, which makes it well-suited for industrial drying applications. The sensor’s compact housing allows for easy positioning within the monitored process, while the filter minimizes the influence of particulate matter and volatile organic compounds on the humidity sensor. The sensor is based on a capacitive-polymer measurement principle with a fast response time, low drift and hysteresis. The sensor remains stable in a high-humidity environment and can sustain condensation conditions. It comes fully calibrated and temperature-compensated. — Innovative Sensor Technology IST AG, Ebnat-Kappel, Switzerland