Magnetic Door Switches | McMaster-Carr

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Wire Lead Length

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Material

171 Products

Magnetic Switches

Magnetically Actuated Switches

Actuate when a magnet comes nearby, such as when a door or window opens

88 products

Magnetic Contact Alarm Switches

Wire to an alarm system to get alerts when doors or windows are opened

12 products

Tamper-Resistant Magnetically Actuated Switches

Require coded magnets to actuate and cannot be bypassed using ordinary magnets

12 products

Smart Magnetic Contact Alarm Switches

An app automates alarms, such as sounding a buzzer if a trailer door opens after hours

1 product

Tamper-Resistant Magnetic Contact Alarm Switches

Prevent unauthorized use with coded magnets and contacts that wire to an alarm system

3 products

Circuit Board Magnetically Actuated Switches

Mount to your circuit board to activate electronics

2 products

Other Products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

9 products

Audible Alarms/Indicator Lights

Alert people with both light and sound

2 products

Proximity Sensors

Detect the presence or position of objects from a short sensing distance

13 products

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

18 products

Audible Door Alarms

An alarm sounds if someone opens a door without using the code or key

7 products