The ACI A/RH5 Series relative humidity transmitters are specifically designed for HVAC/BAS applications and have proportional 4 to 20 mA, 0 to 5 VDC, or 0 to 10 VDC output for 5% measurement. It is available for room, duct, outside, and stainless steel wall plate applications. The A/RH5 Series has on board DIP switches which allow the user to select the desired output signal and can be powered by AC or DC power sources.