Battery-powered Homematic IP indoor motion and twilight sensor Other Homematic IP components can be linked to and controlled by this motion detector with a twilight sensor, which has two replaceable batteries that supply it with energy for up to three years. It can, for example, be linked to alarm sirens. If the passive infrared motion detector detects someone entering the building when the alarm is armed, the alarm is triggered and, if required, a push message is sent to your smartphone. The sensor can also be used for lighting control. For example, the floor lamp in the living room that is powered by a Homematic IP pluggable switch can be activated if there are people in the room and the ambient brightness is low. The lighting duration can be set. Features / compatibility - Homematic IP integrates the areas of indoor climate, security, fire and water protection, weather, lighting and shutter control - simply installed, simply extended and simply secure - Detects and reports movements