• Large, clear, backlit display is easy to read - even in the dark
• Displays room temperature, temperature setting, and optional outdoor temperature
• Front battery door access for fast, easy replacement
• Built in compressor protection
• Circulation fan mode for air cleaning
• Air filter, humidifier, dehumidifier, and HVAC service indicators
• Auto backlight (activated with first button press)

There’s no longer a reason to use a mechanical thermostat. Get all the benefits of bringing your heating and cooling system into the digital age.

The Aprilaire 8446 Non-Programmable Thermostat is mercury-free and provides pinpoint accuracy and control for ultimate comfort. If you don’t need a programmable thermostat, but desire the features of an electronic over a mechanical thermostat, then this type is the best choice for your home. This non-programmable thermostat's compact computer offers heat pump and emergency heat modes to provide outstanding energy efficiency, cutting down on electricity bills.

• Owner's Manual