The compact motion detector with a powerful PIR sensor offers three functions in one device: The precise detection of movements ensures automatic switching of lights, offers secure monitoring of rooms and at the same time enables manual control of Homematic IP devices and functions as a button. Thanks to the integrated brightness sensor, the light is only switched on when it is needed - for more comfort and energy savings. Within a Homematic IP security solution, the motion detector can not only switch on the light, but also trigger an alarm