Resideo TH3210D1004 Thermostat

Pro 3000 Non Programmable Thermostat, 20-30Vac or 750mV, 2 Heat/1 Cool Heat Pump Systems, Heat-Off-Cool-Emergency Heat System Switching, Auto-On Fan Switching, 40-90 Degree Heat Temperature Setting Range, 50-99 Degree Cool Temperature Setting Range, Auto or Manual Changeover, 5-90% RH Non Condensing Operating Humidity Range, ± 1 Degree Accuracy, Dual Powered: Battery or Hardwire, Premier White, Horizontal Mount