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

Price: $275.00
(as of Jul 16, 2026 04:16:18 UTC – Details)


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.
Control heating, cooling and IAQ equipment with only 2 wires at the thermostat
Smart Schedule – programs in seconds for any lifestyle
Red LINK wireless communication
Precise temperature control (+/- 1 Degrees Fahrenheit ) for reliable and consistent temperature
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.

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