Alarm device

摘要

The alarm device has a mobile alarm transmitter (1) which is connected to a sensor element (4a-4c) for providing an alarm signal, when change in electrical property is detected. The alarm transmitter and sensor elements are electrically connected and contacted and are designed as separate units and as a consumption unit. The sense element is designed as separate units for performing securing and releasing process of a protected article. The connection supply to alarm transmitter from sensor element is removed.