Supco 43503 Programmable Wall Thermostat with Auto Season Changeover, 45 to 95 Degree F, 20-30 VAC

7 Day programming, 4 programs per day with auto season changeover. Auto programming. Keyboard lock. Easy front load battery access. Energy and filter use monitors. Patented Home Today temporary override. Vacation Hold override. Terminations: RC, RH, W, Y/Y1, G, O/B. Latching relays for system compatibility. Soft touch keypad. Low battery indicator. Indiglo Backlight. Easy, front load battery access. 2 AA batteries included. Are compatible with: 24 VAC heat/cool, Heat only or cool only systems. gas, electric or oil systems, millivolt systems, 2 wire hydronic systems (Not for use with 110/220V systems). Have These Specifications: 20-30 VAC, 50/60 Hz, Current draws 0.1 to 1.5 amps, Temperature set range: 45 - 95 degrees Fahrenheit. Operating differential +/- 1 degrees Fahrenheit. Compressor protection: 4 min. delay on break. 3 year warranty.