Position Sensors | McMaster-Carr

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1,509 Products

Electrical

Sensor Switches

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

710 products

Linear Motion Position-Measuring Transmitters

Measure the position of an object moving in a straight line; also known as string pots

5 products

Magnetic Switches

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

88 products

Snap-Acting Switches

Open and close circuits quickly to minimize arcing and sticking; often used as door-open indicators

214 products

Potentiometers

Control speed, volume, and light intensity by varying electrical flow; also known as rheostats

27 products

IO Link Programmers

Configure your IO Link devices without a PC, outlet, or separate software

1 product

Switch Mounts

Mount sensor switches to panel cutouts, tank walls, or conveyors

5 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

18 products

Relays

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

4 products

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

5 products

Sensor Switch Transmitters

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

12 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

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

47 products

Building and Machinery Hardware

Indicating Knobs

Control devices and view settings at a glance

89 products

Brackets

Connect surfaces in an assembly

64 products

Fluid Handling

Level Sensor Switches

Activate equipment by detecting the liquid level in a tank

25 products

Material Handling

Conveyor Accessory Mounts

Position guides or sensors to the exact spot needed for your conveyor

48 products