The Hive Thermostat & Receiver is a programmable 7-day thermostat designed specifically for Open Therm boilers. With a square-shaped design and temperature sensor technology, this thermostat offers wireless connectivity and operates on a rotary knob control style. Powered by batteries with a voltage of 230V, this plastic material thermostat is easy to use and efficient for controlling heating and cooling systems in your home. Its programmability allows you to set specific schedules for each day, making it a convenient and reliable choice for your heating needs.