LE Sircut LEMS-101-5, 5pcs Recessed Wired Security Door Contact Sensor Alarm Magnetic Reed Switch, Magnetic Door Sensor,Magnet Near - Connect Circuit, Magnet Away - Break Circuit
Amazon Price as of 02/17/2025 08:05 GMT+00:00
-12%
$6.99
$7.99
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average price $7.49
$0.5 cheaper than average
$7.24
$7.74
Product Description
These are used to secure an alarm circuit on a door or window. Sold as a pair, one has a magnet inside, the other a reed switch. They have powerful magnets, with self adhesive or screw mount, and screw terminal connections. Reed Switch contacts: closed when both units are together (ie current flows), and open when apart. Normally CLOSED (NC) per pair. Contact operation: Contacts are closed cicuit when the magnet is alongside the switch. For alarm installation this is denoted as the "normal" state as the door/window is secure and the alarm is armed. Contact operation: Contacts are closed cicuit when the magnet is alongside the switch. For alarm installation this is denoted as the "normal" state as the door/window is secure and the alarm is armed.
• Surface Mount Strong Magnet
• Stable Magnetic feild
• Suitable almost all Burglar Alarm system
• Suit for windows and doors
• Speical Strong Magnetic field
• 13 x 26 x 15mm Big Size Strong Magnet
• Voltage rating: 100VDC
• Current rating: 0.25A
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