Resideo THX9421R5021WW Thermostat

Prestige IAQ 2 Wire Thermostat, 18-30Vac, Heat-Off-Cool-Auto-Emergency Heat System Switching, Auto-On-Circulating-Follow Schedule Fan Switching, 8.06 Square Inch Display, 7 Day Multiple Day Programming or Non Programmable, Auto or Manual Changeover, Screw terminals, 5-90% RH Non Condensing Operating Humidity Range, 10-60% RH Humidification Setting Range, 40-80% RH Dehumidification Setting Range, 322-120 Degree Operating Temperature Range, Hardwired, Tri Lingual Display ( English, French, Spanish ), Used with Thm5421R1021 Interface Module and Accessories, Front is White, Sides are White