Belimo Temperature and Humidity Sensor 22DTH-13M Duct sensor Humidity / Temperature Active sensor (4…20 mA) for measuring the relative or absolute humidity and temperature in duct applications. FEATURES Nominal voltage DC 24 V Nominal voltage range DC 13.5...26.4 V Power consumption DC 0.5 W Cable entry Cable gland with strain relief Ø6...8 mm Download PDF Now