GoKawiilSonoff unveils $35 Wi-Fi smart radiator valve at IFA 2026
Sonoff introduced a new Thermostatic Radiator Valve (TRV) at IFA 2026, a smart device that screws directly onto a radiator's valve pipe and connects via Wi-Fi to an app. Priced at $35, it displays temperature on a color screen and supports Celsius and Fahrenheit units.