Honeywell TH5320R1002 Non-Programmable Wireless Thermostat Thermostat Only - requires THM5320R1000 Equipment Interface Module, or HZ432 or HZ322 TrueZONET panel; THM4000R1000 Wireless Adapter for zoned operation. Features: . Powered by RedLINKT reliability . No interference with other wireless devices in the home . Works with compatible RedLINKT enabled devices . Same great features of the FocusPRO® thermostat now wireless . Installs in minutes . Can display outdoor temperature and humidity . 1 year battery life . 2 month low battery warning SPECIFICATIONS: Application: Gas, oil, electric, heat pump, forced warm air, hot water, steam or gravity Mounting: Horizontal Changeover: Auto/Manual Selectable Color: Premier White® Stages: Up to 3 Heat / 2 Cool Heat Pump or Up to 2 Heat / 2 Cool Conventional Power Method: Battery Switch Positions (Fan): AUTO-ON Switch Positions (System): HEAT-OFF-COOL-AUTO-EM.HEAT Dimensions (in.): 3 9/16 in. High X 5 13/16 in. Wide X 1 1/2 in. Deep Dimensions (mm): 91 mm High X 147 mm Wide X 38 mm Deep Setting Temperature Range (F) Heat 40 F to 90 F; Cool: 50 F to 99 F Setting Temperature Range (C) Heat 4.5 C to 32 C; Cool: 10 C to 37 C Differential Temperature: (F) ± 1 F Differential Temperature: (C) ±0.5 C Sensor Element Thermistor Operating Temperature Range: (F) 32 F to 120 F Operating Temperature Range: (C) 0 C to 48.9 C Operating Humidity Range: (% RH) 5 to 90% RH, non-condensing Comments: Thermostat is also available in kits for zoned and non-zoned systems Parts Needed for Operation (not included) - TrueZONET System HZ432 or HZ322 TrueZONET panel; THM4000R1000 Wireless Adapter Parts Needed for Operation (not included) - Non-Zoned System