Radiator thermostats enable your Wiser system to enter a whole new level of smart. With a direct connection to the boiler they enable you to control the on/off times and temperatures of individual rooms via the intuitive app, even with no internet connection while at home. Building on the iconic design of the Drayton TRV4, the Wiser Radiator Thermostat maintains the simplistic style and builds on years of success as a leading TRV manufacturer with a host of additional features. Works with all Drayton Wiser kits. Further features include a digital boiler interface for efficient control using OpenTherm technology (only with OpenTherm supporting boilers)

• Add additional single radiator thermostats to any of the Wiser packs to create more zones and benefit from maximum comfort and energy saving (requires the Wiser Heat Hub)
• Easy to install, mounts on existing radiator valves, battery-operated (2 x AA included)
• Revolutionary twist top with spring back for boosting of thermostat
• ERP rating 3.5 Percentage
• Multiple sensors for high accuracy
• Automatic valve protection runs
• LED Display
• 7 Day programmable