Drayton Wiser Smart Thermostat Heating Control Heating Only – Works with Amazon Alexa, Google Home and IFTTT

From the manufacturer

Kit includes Heat HubR and smart room thermostat which you can take control of from your phone
This 1-channel kit is suitable for combination boilers
Heat HubR fits directly onto your UK standard wallplate for simple installation
Wiser is not suitable for gravity-fed systems
Smart radiator thermostats are available to add separately, providing multi-zone control
Control your heating with voice commands, Wiser is compatible with voice assistants including Amazon Alexa
Compatible with IFTTT for greater flexibility and convenience
Use the Wiser app to view your system’s Heat Report and activate the Smart Modes to improve efficiency
System receives software updates via the cloud and supports up to 16 rooms with 32 smart radiator thermostats
Radio Equipment Directive (RED) 2014/53/EU, Batteries Directive 2006/66/EC, RoHS Directive 2011/65/EU