- zinc alloy
- Window Magnetic Alarm: Made of materials, wear resistant and firm, durable and long service life.
- Window Reed Alarm: The magnet part is installed on the movable door and window.- 56 Magnetic
- Rolling Door Alarm: Made of materials, wear resistant and firm, and long service life.
- Rolling Door Applications -56: The magnet part is installed on the movable door and window.
- Door Contact Sensor: NC means normally closed, when the magnet together, the circuit is conductive ( light on ).