Displacement Sensors | McMaster-Carr

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1/2" Circular Connector

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1,123 Products

Electrical

Linear Motion Position-Measuring Transmitters

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

8 products

Sensor Switches

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

682 products

Photoelectric Switch Reflectors

Pair with sensor switches to reflect light back at them

38 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

11 products

Potentiometers

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

6 products

Rotary Encoders

Track the distance, direction, and speed of travel of motor shafts, conveyors, and wheels

12 products

IO Link Programmers

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

1 product

Sensor Switch Transmitters

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

15 products

Relays

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

4 products

Switch Mounts

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

2 products

Development Board Sensor Modules

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

2 products

Measuring and Inspecting

Vibration Meters

Spot-check vibration to gauge the health of your machine

1 product

Signal Output Testers

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

1 product

Fluid Handling

Level Sensor Switches

Activate equipment by detecting the liquid level in a tank

25 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

28 products

Material Handling

Conveyor Accessory Mounts

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

48 products

Lighting

Light Switch Sensors

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

49 products

Light Switches

Manually turn lights on and off

2 products

Light Switch Sensor Guards

Protect light switch sensors from damage and vandalism

5 products

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

64 products

Positioning Arms

Mount and position tools, small electronics, and displays

23 products