The DEVIreg Smart Electric Underfloor Heating Thermostat in Polar White is a programmable thermostat with a square shape and digital touch control style. It is designed by the brand Devi and operates on a corded electric power source. This thermostat is compatible with underfloor heating systems and features temperature sensor technology for efficient heating control. With its sleek white design and programmable settings, the DEVIreg thermostat provides a convenient and stylish solution for maintaining the ideal temperature in your home.