Honeywell RTH221B1021/A thermostat

1-Week Programmable Thermostat, White - Basic operation
- Precise temperature control
- Sleek one-piece design

- Simple Programming - One program runs for the entire week (4 periods per day)
- Energy Savings - Program to save up to 33 percent on annual heating and cooling costs (if used as directed, savings may vary depending on geographic region and usage)
- Easy-To-Use - Basic operation keeps programming easy
- Works with heating and cooling systems
- Does not work with heat pump systems or electric baseboard heat (120-240V)