Belimo Temperature and Humidity Sensor 22DTM Duct sensor CO₂ / Humidity / Temperature For measuring CO₂, with integrated temperature and humidity sensor. FEATURES Nominal voltage AC/DC 24 V Nominal voltage range AC 19...29 V / DC 15...35 V Cable entry Cable gland with strain relief 2 x Ø6 mm Power consumption AC 4.3 VA Download PDF Now