Magnetic Reed Switch, 4 Pack NC Ring Alarm Contact Sensor Switch, Brown

4 Pack Magnetic Reed Switch NC Ring Alarm Contact Sensor Switch Brown

Magnetic Reed Switch, 4 Pack NC Wired Magnetic Contact Switch, Black

Magnetic Reed Switch, 2 Pack NC NO Wired Magnetic Contact Switch, Black

Magnetic Reed Switch, 4 Pack NC Wired Magnetic Contact Switch, White

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

Reed Switch - Magnetic Sensor Switch - Free UK P&P

Magnetic Reed Switch, 1 Set NO NC Wired Door Window Contact Switch