Check the listing for details. PRO1 Universal Electronic Thermostat T855. Color: White, Condition: New. Listed at 90.00 USD. This Pro1 T855 programmable thermostat is a great addition to any home or office heating, cooling, and air system. With its programmable features, you can easily adjust the temperature settings and create a comfortable environment wherever you are. This thermostat is compatible with a variety of heating and cooling systems, making it a versatile option for any home improvement project. The Pro1 T855 thermostat is a reliable and durable choice for controlling your heating and cooling system. Its brand reputation and model quality ensure that you are getting a top-notch product that will meet your needs. Whether you are looking to upgrade your current system or replace a faulty thermostat, this programmable thermostat is an excellent choice.