Description
This is a description of a metal rolling gate window door magnetic contact alarm. The alarm is designed to be used with metal doors, and it has a power-saving design. The outer shell of the alarm is made of metal electroplates, and the switch is a NO (normal open type). When the magnet is near the switch, the circuit is connected.
Description:
- Special use for metal doors, anti-magnetic interference design.
- Simple and convenient for installation, power-saving design.
- The metals electroplates outer shell, double-loop circuit design, performance stable.
- Switch Type: NO(normal open type), circuit is connected when magnet is near the switch.
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