5 Sets Magnetic Reed Switch NC Magnetic Contact Switch for Door Window

3 Sets Magnetic Reed Switch NC NO Magnetic Contact Switch for Door Window

5 Sets Magnetic Reed Switch NC NO Magnetic Contact Switch for Door Window

10 Set Magnetic Reed Switch NC Magnetic Contact Switch for Door Window

Magnetic Reed Switch, 6 Pack NC Wired Magnetic Contact Switch, Black

Magnetic Reed Switch, 5 Pack NC Wired Door Sensor Window Contact Switch, White

Magnetic Reed Switch, 2 Sets NO NC Wired Garage Door Window Contact Switch

10 Sets Magnetic Reed Switch NC Magnetic Contact Switches for Door Window