There is a reason why the Honeywell Home Round Heat Heat/Cool Manual Thermostat is considered one of the most popular thermostats in the world. Installed in well over 70 million homes and buildings, the Round Heat/Cool Only Manual Thermostat is an easily accessible and reliable option to adjusting your surrounding's temperature. This model has been designed to be especially user friendly and features a simple and precise round that's been celebrated for its ease of use and precision. Mercury-free and featuring a decorative covering ring to cover surrounding wall marks, the Round Heat/Cool Only Manual Thermostat is a modern classic that has earned its distinction as a top end thermostat.