Stylish and simple, battery-operated and RF programmable thermostat for controlling wet underfloor heating systems. User-friendly interface makes adjusting and programming temperatures fast and simple. 7-day programme, 15-minute increments and 6 on/off periods for optimal comfort and control. Ambient temperature sensor, with an optional connection for an external probe, to protect against excessive heat. Thermostat communicates with the JG Underfloor RF wiring centre (via a radio signal) to provide heat to an individual room and removes the need for further wiring.Open Windowfunction detects sudden temperature drops to prevent the boiler from firing and wasting energy.Adaptivefunction predicts heat-up times and adjusts programming to eliminate temperature spikes.Freeze Protectionfunction reduces energy-wastage in unused rooms (adjustable between 5-17°C). Underfloor heating can be controlled remotely when used with the JG Underfloor gateway and App. 2 Year Guarantee Easy...