The final component, the smart radiator thermostat, is a white plastic cylinder, which fit to the radiator once the existing valve has been unscrewed. To manually override any schedules you may have set, simply swivel the top of the radiator thermostat right to start the radiator heating, or left to stop heating. An LED on the radiator thermostat glows red temporarily when the radiator is heating, and blue if it's been turned off. Turning and holding the radiator thermostat will also reset or put it into set-up mode, depending upon how long you hold it in that position. The Insights tab includes information on how much energy you’ve saved with Eco mode enabled, while also presenting a ‘Heat Report’ that details how long and to what temperature over the past day, week, and month your rooms have been heated. They might look like an ordinary adaptor or extension lead, but they can do so much more, connecting to your wifi and letting you manage your gadgets from an app on your phone. Powered by two AA batteries, the smart thermostat can be freestanding on a table or shelf, or mounted on a wall. It has three touch controls on the front. The plus and minus button allow you to adjust the desired temperature of the room, while the middle button boosts the heating in said room by two degrees. The screen automatically goes to sleep after 15 seconds to conserve the battery, but pressing any of the three touch controls will wake it up. When the plug is ON, the on/off button will be displayed in green beside the plug and the smart plug will provide power to the electrical appliance connected to it.

Insights tab provides stats about the number of hours the heating has been switched on and energy saving made through Eco mode The Wiser smart plugs offer the ultimate smart home convenience; when you are away from home, you can still control what goes on within your own four walls from a completely different location. They also work with your Alexa products. When the plug is off, the on/off button will be light grey and the smart plug will not provide power to the electrical appliance connected to it. You can tap on a room and edit the schedule or access the room settings, where you can view the battery level for the thermostat, rename it and turn Open Window Detection on or off. Editing a schedule was made super-easy as a result of the ‘copy’ feature, which lets you duplicate a schedule with just one tap, rather than having to input it all for each day and on each device. You can access your smart plugs on the home screen. They will appear in whichever rooms you assigned them to during set up.When supplying power to the electrical appliance connected to it, the smart plug will illuminate it’s blue LED and when not supplying power, the LED will be off.

We also found it was easy to create some basic automations in the app using the Moments feature - such as turning the radiators in the lounge on, while also dimming the map connected to the Wiser smart plug to create a cozy atmosphere of an evening. AppHowever, it does have an Away Mode. Rather than switching the heating off completely while you’re out, this feature allows you to set a minimum temperature at which you want your home to remain at while away. If the temperature plunges below this threshold, the heating will spring to life – handy, if you're concerned about frozen pipes when you’re not at home. They also have the added benefit of a built-in signal range extender, automatically boosting the signal of all nearby Drayton Wiser devices. Our Verdict: Drayton Wiser may be functional, but its plain all-white plastic design certainly isn’t stylish. If you prefer gadgets that make a design statement, this isn’t the smart thermostat for you. From the home screen, you can also view the weather for your location and sunrise and sunset times, too. The cog icon at the top of the home screen provides access to the main Settings menu, from where you can activate smart modes such as Eco and Comfort, and set a temperature for the Away mode.