The Heatmiser Edge-e is our Electric Floor Heating Thermostat that is compatible with the wireless air sensor & wireless door/window switch. The wireless air sensor function is perfect for those looking to measure the temperature in another location & for those with larger open plan properties, multiple air sensors can be used to create an average temperature. Wireless Air Sensor Function Wireless Window/ Door Switch Function 4 or 6 Comfort Levels per Day (Selectable) Large Display Modbus Connectivity Non-Programmable, 5/2, 7 day or 24 hour programming (selectable in software)