Honeywell THX9421R5021WW 2 Wire IAQ High Definition Touch Screen Thermostat with Red Link Technology, White

The Prestige IAQ thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable and selectable for residential or light commercial use. Controls up to 4-stages of heat and 2-stages of cool in a heat pump system and up to 3-stages of heat and 2-stages of cool in a conventional system.