Position Sensors | McMaster-Carr

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1,556 Products

Electrical Power, Networking, and Controlling

Sensor Switches

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

681 products

Magnetic Switches

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

120 products

Sensor Switch Transmitters

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

19 products

Snap-Acting Switches

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

206 products

Switch Safety Barriers

Safely send power to switches and sensors in volatile areas such as refineries and power plants

2 products

Switch Mounts

Mount switches to panel cutouts, tank walls, or conveyors

5 products

Photoelectric Switch Reflectors

Pair with sensor switches to reflect light back at them

38 products

Linear Motion Position-Measuring Transmitters

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

10 products

Potentiometers

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

26 products

IO Link Programmers

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

1 product

Development Board Sensor Modules

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

5 products

Potentiometer Panel Seals

Keep moisture and dust out of potentiometers

4 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

44 products

Safety Relays

Monitor circuits and force machines to a safe stop if the relay detects a fault

4 products

Measuring and Inspecting

Position Indicators

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

71 products

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

29 products

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

64 products

Indicating Knobs

Control devices and view settings at a glance

89 products

Material Handling

Conveyor Accessory Mounts

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

54 products

Facility and Grounds Maintenance

Mirrors

View your reflection or deflect beams from safety barrier switches for a perimeter around machinery

10 products