Homematic IP starter set climate control with an Access Point central control unit, a radiator thermostat and an optical door/window contact This cloud-based starter set enables you to get started with intelligent climate control via Homematic IP. The Access Point central control unit establishes a connection to the Internet via the router, is used to teach-in the components and makes control via the free Homematic IP app on your smartphone possible as well as integration into Amazon Alexa and Google Home. Voice control for controlling the heating system is now available via the latter smart home systems. The radiator thermostat replaces conventional thermostats on the radiator. It regulates the performance of the radiator according to the actual and target temperatures. The target temperature is set directly on the thermostat, via the app, on the basis of a schedule or by voice command. In addition, the heating power is reduced as soon as the door/window contact registers that a windo