Assembled Product Length: 3.86" Assembled Product Height: 1.08" Assembled Product Width: 5.36" . Straight forward display and basic buttons keep operation simple Backlit display shows current room temperature and set point temperature simultaneously +/- .5°C temperature control Auto change from heat to cool Change reminders for low batteries Program is retained in memory in the event of a power outage Fahrenheit or Celsius temperature display Requires 2 x AA batteries (not included) INCLUDES: UWP mounting system Mounting hardware Quick install guide