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No more wondering if you left the heating running in an empty bedroom or worrying about frozen pipes on a cold snap. The TP-Link Kasa KE100 Smart Thermostat Radiator Valve replaces your standard radiator valve and puts room-by-room heating control right in your pocket, so you can adjust warmth from your phone using the Tapo app and keep every space comfortable without wasting energy heating rooms you're not using. Set heating schedules to suit your routine and let thermostatic control manage temperatures automatically in bedrooms, living rooms, hallways or home offices. Voice control via Alexa or Google Assistant lets you adjust settings from the sofa, while frost protection keeps pipes safe when temperatures drop. The valve fits most standard radiators with multiple adaptors and fixings included, and its compact white finish sits neatly without drawing attention. Simple self-assembly gets you running quickly, and controlling each radiator independently ensures every room gets the warmth it needs.