See photos. The Danfoss 087N7851 TP One Battery-Powered Programmable Room Thermostat is a white, wall-mounted rectangular thermostat with touch control style and app control capability. It is powered by batteries (AA size) and has a 7-day programmable schedule, making it suitable for controlling the temperature in any room with a central heating radiator. The thermostat is designed for easy installation and use, with a sleek plastic material and digital display size of 1.76 inches. Compatible with various brands and models, this Danfoss thermostat offers a convenient and efficient way to regulate the heating in your home.