Honeywell Standard Manual Mercury-Free Heat/Cool Thermostat. This 4-wire thermostat is compatible with central gas or oil heating, electric furnaces, and central electric cooling. It offers accurate temperature control within plus or minus 1.5 degrees, ensuring optimal comfort. It works with heat pumps without auxiliary heat, making it a versatile choice for different heating and cooling systems. Backed by a 1-year limited warranty.
- Easy to operate, easy to install
- Precise temperature control
- Works for heating and cooling
