SO2 Thermostat

with Humidity Control


The S02 is compatible with most GeoStar systems including single/dual capacity, ECM or PSC blower motors, or dual fuel. This robust thermostat utilizes Comfort Talk, text based display, wireless communication with accessories, and humidity control.


Auto Changeover

Provides the option to automatically switch from heating to cooling with no effort.

Comfort Talk

Thermostat automatically translates Fault Flash codes to on-screen text for easy diagnosis.


Ability to regulate different temperatures for different days or times of day.

Dual Fuel

Thermostat automatically switches from geothermal to a supplemental heating source if needed.

Text Based

Current conditions and status messages are rendered on-screen in text.


Allows the ability to view and control humidity levels throughout your home.

Fault Flash

Faults are communicated via light flash.


Ability to gather additional data on indoor/outdoor temperature.


4.43” H x 5.33” W x 1.0” D
Download Owners Manual
Download Thermostat Product Line Brochure

Accessories available

TSS01 – Indoor/outdoor wireless temperature sensor
CCMS01 – Comfort call module

Suitable For

Single or dual capacity geothermal units with ECM or PSC blower motors.

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