The HT-1000 series room humidity sensors provide active sensing of relative humidity and on specific models, also active/passive sensing of temperature in HVAC applications. It features a polymer capacitance humidity sensing element and provides within either ±2% or ±4% accuracy a voltage output signal proportional 0 to 100% relative humidity. The HT-1000 series room humidity sensors are designed for use with any type of Johnson Controls or third party HVAC controllers. Features Supply voltage: 15 VAC / 24 VAC Output RH%: 0...10 VDC Output Temperature: 0...10 VDC, NTC K2, Pt1000 Protection class: IP30