Door Sensors | McMaster-Carr

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System of Measurement

Switching Voltage

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Sensor Type

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221 Products

Electrical

Magnetic Switches

Magnetic Switches

Actuate when a magnet comes within sensing distance; often used to detect when doors or windows open

Safety Switches

Safety Switches

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

Sensor Switches

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Communication

Audible Alarms

Everything from bells and whistles to horns and sirens

Building and Machinery Hardware

Garage Door Opener Receivers

Garage Door Opener Receivers

Wire to automatic overhead door openers to accept signals from remote and keypad transmitters

Garage Door Opener Internet Gateways

Garage Door Opener Internet Gateways

Use a smartphone or computer to control automatic overhead door openers

Garage Door Opener Transmitters

Garage Door Opener Transmitters

Send signals to receivers to open and close automatic overhead door openers

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)