tado° Smart Radiator Thermostat - WiFi Starter Kit V3+ - 2x Smart Radiator Valve, Digital Heating Control Via App, Easy Installation, Save Energy - Works With Alexa, Apple Siri, And Google Assistant :
Tado Smart Radiator Thermostat v3 Plus Teardown - iFixit
Should you buy the Tado Smart Radiator Thermostat? | T3