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Ten small white rectangular plastic sensors with wires visible

Jedrek

Jedrek 10PCS NO/NC Wired Door Magnetic Contact Switch home safety

SKU CH-692J-S774D

Pack of ten wired magnetic reed switches for doors or windows, each rated at 0.1 A and 30 VDC, measuring 55 by 13 by 11 mm

  • TypeDoor / Window Sensor
  • Pack of ten sensors covers multiple entry points
  • NO/NC wiring supports both alarm and access systems
  • 1 A at 30 VDC keeps power draw low
  • ABS housing resists everyday knocks and moisture
  • Compact 55 × 13 × 11 mm fits tight frames

Pack of Ten Door and Window Sensors

This set supplies ten wired magnetic contact switches designed for home alarm and access-control systems. Each unit combines a reed switch and magnet to detect opening events on doors or windows. The normally open and normally closed wiring options let installers choose the circuit logic their panel requires.

Replaces Individual Reed Switches in Wired Loops

The ten-piece pack covers multiple entry points in a single purchase, removing the need to source separate sensors for each zone. The upgrade is worthwhile when a panel supports NO/NC zone inputs and the installer wants consistent switch specifications across every perimeter contact.

Simple Screw Mounting With Low-Voltage Wiring

Each sensor measures 55 by 13 by 11 millimetres and mounts with screws into ABS housings. The contacts are rated for 0.1 ampere at 30 volts DC with a 3-watt maximum, so they must not be wired directly to high-power loads. A common error is connecting the reed switch to mains voltage or a siren without an intermediate relay, which destroys the contact.

Highlights

  • Pack of ten sensors covers multiple entry points
  • NO/NC wiring supports both alarm and access systems
  • 1 A at 30 VDC keeps power draw low
  • ABS housing resists everyday knocks and moisture
  • Compact 55 × 13 × 11 mm fits tight frames

Specifications

TypeDoor / Window Sensor

Questions about this item

How much clearance do I need for the 55 mm by 13 mm sensor body?

The switch housing measures 55 mm long, 13 mm wide and 11 mm deep, so allow at least that much flat space on the door frame and the matching magnet on the door itself.

Which wires go to the normally-open and normally-closed terminals during installation?

Connect your alarm loop to the NO pair for a circuit that closes when the door opens, or to the NC pair for a circuit that opens when the door opens — do not apply more than 0.1 A at 30 VDC.

When should I replace a switch that no longer triggers the panel?

If the reed contact sticks or the magnet loses pull, swap the unit; the ABS shell and sealed reed are rated for 3 W maximum switching, so degradation means the internal contact has worn.

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