The Aube electronic heating thermostat by Honeywell combines unbeatable accuracy with silent operation. This high-capacity thermostat features TRIAC Silent Switching, making it ideal for bedrooms. Its ultimate temperature control makes it the most accurate type of thermostat on the market (+/-0.15degC / 0.27degF). An on-screen heating power indicator also offers at-a-glance verification of power being used; 2-wire, non-polarized connection provides fast, hassle-free installation. Features 7-day, 4 time periods/day, and 2 temperature settings. Early start function also ensures programmed temperature is reached by the programmed time. Battery-free backup prevents re-programming after power outages. Compatible with electric baseboard, convector and fan-forced heaters. Also ideal for radiant ceilings.