Honeywell Home Prestige® YTHX9421R5101WW/U 2-Wire IAQ Comfort Touchscreen System, Programmable Thermostat, 40 to 90 deg F Control, Import

Honeywell Prestige® IAQ Comfort Touchscreen System, 2-Wire, Programmable Thermostat, 40 to 90 deg F Control, R, RC, RH, C, W-O/B, W2-AUX1, W3-AUX2, Y, Y2, G, A-L/A, U1, U1, U2, U2, U3, U3, S1, S1, S2, S2, S3, S3, S4, S4, A, B, C, D Terminal Designations, Heat/Cool/Auto/Off System Switching, Auto/On/Circulate/Follow Schedule Fan Switching, 6 Stage, 4 Heat Pump, 3 Conventional Stages Heat, 2 Heat Pump, 2 Conventional Stages Cool, 5 to 90% Non-Condensing Humidity, 8.06 sq-in Tri-Lingual Display, 18 to 30 VAC, Hardwired Power Source, White, 4-1/2 in W x 7/8 in D x 3-1/2 in H, Import

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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. Three sets of Universal IAQ contacts to control humidification, dehumidification and ventilation. Four sensor inputs for wired sensors or dry contact devices. Works with the Equipment Interface Module and RedLINK® accessories including the RedLINK® Internet Gateway, Portable Comfort Control, Wireless Outdoor Sensor and Wireless Indoor Sensor.