ThermoSphere Bluetooth Programmable Thermostat - BT21 with a 3-year warranty combines modern design with easy operation. Its compact style fits contemporary interiors, while the manual dial and Bluetooth connectivity allow for effortless temperature control, keeping your home comfortable whether you're there or away.

Program it easily via the dedicated Bluetooth app, and enjoy advanced features like a setback signal terminal for BMS applications and compatibility with snow-melting systems. Its built-in ambient and external floor temperature sensors ensure energy-efficient heating, reducing energy costs. 

Requiring just a 25mm deep back box for installation, it measures 86 x 10 x 86 mm and supports temperature settings between 5°C and 35°C. With Bluetooth 4.2 connectivity and a robust IP21 protection rating, it is both versatile and reliable.