Along with precision temperature accuracy and effortless programmability, the Aprilaire 8620 gives you options for controlling the remaining aspects of indoor air quality—humidity, fresh air and air purity. 

The Aprilaire Model 8620 Thermostat:

Saves you money on energy costs: Through proper use of the programmable settings.*
Offers Event-Based™ Air Cleaning: When paired with a Whole-Home Aprilaire Air Purifier, this feature allows you to clean your home's air on your terms.
Offers humidity and air freshness control options
The Aprilaire Model 8620 Thermostat is a programmable touchscreen thermostat that allows you to achieve total comfort throughout your home by controlling various aspects of indoor air quality in addition to temperature. It works with any heating and cooling system and is installed by a local HVAC professional.