Reed button designed for the silent signaling of robberies in action. By pushing the button, a magnet gets close to the internal reed and opens the contact, thus triggering the alarm. Self-protection against opening through internal reed. Internal reeds are designed for NC operation. Simplified installation thanks to the two-sided tape included. LED memory with central reset (by cutting power supply), button with spring return, 6-terminal connection: 2 for contact, 2 for ant-tampering, 2 for power supply