York S1-THEH21NY is a battery/system-powered thermostat with 2-heat and 1-cool stages that offer basic operation of HVAC equipment.
- 2-stage heat, 1-stage cool for use with gas/electric, heat pump, or hydronic heating
- Works with two AA batteries/ 24-volt system power
- Auxilliary heat indicator
- Easy to operate with large LCD display
- Fahrenheit or Celsius temperature indicator
