Honeywell Home RTH221B1039 RTH221B Programmable Thermostat, White | RTH221B1039

This easy-to-operate 1-Week Programmable Thermostat helps make your home comfortable exactly when you want it. Programmable for one week, it lets you customize your schedule with four options – ‘wake’, ‘leave’, ‘return’, and ‘sleep’ – for precise temperature control and added comfort. Simple step-by-step instructions included with the thermostat make DIY installation easy.
ONE WEEK PROGRAMMING: Set one identical program for the entire week with four program periods per day including wake, leave, arrive and sleep.
PRECISE TEMPERATURE CONTROL: Precise temperature control of plus/- 1 degree Fahrenheit
DIGITAL DISPLAY: Easy-to-read digital display with an intuitive interface for one-touch access to setpoint temperature
EASY INSTALLATION: Easy to install yourself and basic operation keeps programming simple
REMINDERS: Built-in battery change reminders (2 AAA batteries are required for operation)
SET POINT RETENTION: Set point is retained in memory in the event of a power outage
DISPLAY OPTIONS: Fahrenheit or Celsius; 12 or 24 hour clock. Note: This thermostat is not backlit.
OVERRIDE OPTIONS: Permanent and temporary override capability
COMPATIBLE WITH: Heating, cooling and heat pumps without auxiliary heat options
Does NOT work with electric baseboard heat (120-240 V), heat pumps with backup, or multi-stage heating/cooling. For indoor use only.