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Amazon.com: 3X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V 12V 24V Light : Electronics
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Amazon Best Sellers: Best Reed Switches
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Amazon.com: 3X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V 12V 24V Light : Electronics