WT01 LCD Electronic Thermostat in Digital input - Selection of Heat//Cool/Off/Auto - Digital input (by push button) for desired temperature - Fan setting: On /Auto - Controlling temperature: 5C to 35C / 40F to 95F, 0.5C/ 1°F resolution - Operating temperature: 0C to 40C / 32F to 99F - LCD display for temperature, cool / heat / fan indicator, low battery indicator & defrost indicator - LCD Backlighting - With EEPROM for memory all the internal settings - 24VAC / 3VDC (2x AAA alkaline) / 24 VAC common wire with battery back up (2x AAA alkaline) - Rating: 1A - Five selectable mode types for different applications: a. Heat only( normal-open or normal -close valves) b. Heat with fan c. Cool d. Heat pump e. Electric/oil/gas heat with Cool