- Widely Used: This Recessed Door Contact Sensor works used with any and all commercial or residential card access systems.
- Normally Close: When the magnet come together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ).
- Sensitive Responsive: self-adhesive mount, screw surface mount, sensitive response, accurate detection.Fine workmanship ensures its reliability.
- Package Include: 5pcs magnetic door switch, quick and easy installation.
- 100% Satisfaction: If you have any questions about the product, please feel free to contact us. We will be the first time to help you solve the problem.
