Meross Smart Thermostat Valve (Hub Required) Meross HomeKit Hub is needed for installation. Sold seperately. Control Up to 16 Devices – One hub is able to control 16 meross standalone devices (sensors, smoke detectors, thermostat valves) at same time. Forget to turn the thermostats OFF when you leave home, now you can simply control them remotely via Meross app or Apple Home app. Works with Apple HomeKit, Siri, Amazon Alexa and Google Assistant for voice control. eg: “Hey Siri, set the living room thermostat to 25 degree.” Save your heating bill with the smart schedule function. Never worry about arriving home with a cold room, or leaving the house with the radiator still heating. Open window detection. Automatically stop heating when the open window is detected. Save up to 30% energy bill in one winter. Connector type M30 x 1.5 mm. Package Contents: 1 x Smart Radiator Thermostat, 1 x Meross HomeKit Hub, 1 x User Manual, 6 x Connector Adapters (RA Adapter, RAV Adapter, RAVL Adapter, Giacomini Adapter, Caleffi Adapter, M28 x 1.5 Adapter). 1 x Meross HomeKit Hub can connect up to 16 x thermostats.