Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System

Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (3mm×14mm)

2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White）

EPLZON Magnetic Reed Switch Normally Open and Normally Closed NC NO Magnetic Proximity Switch for Door Alarm, Window Safety, DC 5V 12V 24V Light GPS Other Equipment Reed Switch (Black, Pack of 2pcs)

Magnetic Reed Switch,Normally Closed NC Waterproof Magnetic Switch,Micro Alarm Reed Switch 10W 100v 0.5A Magnetic Door Sensor Switch to DC 5V 12V 24V Lights（2 Pack）

QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 5 with 20 Screws

weideer 2pcs MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black

Magnetic Reed Switch,Wired Door Window Contact Sensor,Micro Normally Open NO Alarm Reed Switch,10W 100v 0.5A Magnetic Reed Switch to DC 5V 12V 24V Light(2-Pack)

5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light (Black-B31)

Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Closed Magnetic Induction Switch with 10pcs Small Multi-Use Round Magnets