Honeywell RTH2300B1012/E1  5-2 Day Programmable Thermostat N/A Imported One program for weekdays, a separate program for weekends-4 periods per day Backlit digital display Compatible with heating, cooling and heat pumps without auxiliary heat, Does not work with electric baseboard heat (120-240V) OR multistage HVAC systems Accurate temperature control of +/-1-Degree F for consistent comfort Display options: Fahrenheit or Celsius temperature display, 12 or 24 hour clock