Light Sensors | McMaster-Carr

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Light Beam Switch Operation

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795 Products

Lighting

Light Switch Sensors

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

81 products

Light Switch Sensor Controllers

Turn lights on and off or dim them in unison from a secure Bluetooth network

9 products

Light Switch Sensor Guards

Protect light switch sensors from damage and vandalism

5 products

Floodlights

Illuminate large, outdoor spaces with a wide-angle light

41 products

Ceiling and Wall Lights

Mount to ceilings or walls to light up large spaces

60 products

Security Lights

Deter intruders, improve nighttime visibility, and draw attention to dark areas

13 products

Light Poles

Bring light to your parking lot or walkway in minutes, or replace damaged poles

16 products

Landscape Lights

A directed beam of light illuminates paths, signs, flags, and landscape elements

3 products

Light Bulbs

Standard household, miniature, compact, and tubular bulbs

12 products

Electrical Power, Networking, and Controlling

Photoelectric Sensors

Detect objects from longer distances than proximity and ultrasonic sensors

298 products

Safety Light Curtains

Immediately cut power to machinery when anything blocks the light beam

64 products

Switch Mounts

Mount switches to panel cutouts, tank walls, or conveyors

2 products

Proximity Sensor Safety Barriers

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

2 products

Photoelectric Sensor Reflectors

Pair with reflector photoelectric sensors to bounce light back at them

38 products

Automatic Door Switches

Doors open when you touch a button or the switches detect motion

2 products

Safety Light Curtain Mirrors

Deflect beams from a set of safety barrier switches to form a perimeter around machinery

10 products

Development Board Sensor Modules

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

6 products

Safety Relays

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

6 products

Measuring and Inspecting

Light Meters

Measure light quality and intensity

20 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

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

64 products

Positioning Arms

Mount and position tools and other small equipment

8 products

Material Handling

Conveyor Accessory Mounts

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

54 products