iO HVAC Controls UT-SWM Universal Thermostat Smart Wire Module - 2 To 5 Wire AdapteriO HVAC Controls UT SWM Universal Thermostat Smart Wire Module 2 to 5 Wire Adapter Features and Benefits: Reduces installation costs by not having to pull additional wire Allows up to five digital outputs to be sent on the 24 volt signal wires Supports both heat pump and conventional HVAC systems Compatible with virtually all major thermostat brands Includes compact sender module and relay receiver module Additional Information Item NumberUT SWM