Position Sensors | McMaster-Carr

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1,164 Products

Electrical

Sensor Switches

Sensor Switches

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

Snap-Acting Switches

Snap-Acting Switches

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

Magnetic Switches

Magnetic Switches

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

Linear Motion Position-Measuring Transmitters

Linear Motion Position-Measuring Transmitters

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

Potentiometers

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

Switch Mounts

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

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

Relays

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

Development Board Sensor Modules

Development Board Sensor Modules

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

Fluid Handling

Level Sensor Switches

Level Sensor Switches

Activate equipment by detecting the liquid level in a tank

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Measuring and Inspecting

Position Indicators

Position Indicators

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

Signal Output Testers

Signal Output Testers

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

Material Handling

Conveyor Accessory Mounts

Conveyor Accessory Mounts

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

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