Photoelectric Switches | McMaster-Carr

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Light Beam Switch Operation

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1/2" Circular Connector

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510 Products

Electrical

Sensor Switches

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

296 products

Light Switch Sensors

Automatically turn lights on and off when you enter and exit rooms

75 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

5 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

11 products

Light Curtain Brackets

Swivel a transmitter and receiver from side-to-side for easier alignment during installation

1 product

Light Curtain Cords

Connect multiple light curtains in a row

4 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

4 products

Light Switch Sensor Guards

Protect light switch sensors from damage and vandalism

5 products

Measuring and Inspecting

Signal Output Testers

Check if the signal output of a DC switch is NPN or PNP to know how to wire components

1 product

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

63 products