The Honeywell t4M Thermostat is a programmable modulating thermostat that operates on a 2-wire wire configuration and is powered by batteries (AA size). It is designed for use with combi- boilers and gas boilers, and has a sleek white square design with push-button control style. The thermostat offers 4 heat stages, 7-day programmable days, and frost protection properties. It is compatible with Honeywell brand products and has a 1-year manufacturer warranty. The t4M thermostat is equipped with temperature sensor technology, system switching for auto operation, and Bluetooth/Bluetooth Low Energy (BLE) smart home protocol for added convenience.
