Indicator Lights | McMaster-Carr

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1,219 Products

Communication

Indicator Lights

Call attention to hazards and changes in status with flashing, strobe, and other lights

234 products

Audible Alarms/Indicator Lights

Alert people with both light and sound

64 products

Traffic Lights

Signal and direct traffic

5 products

Vehicle Lights

Illuminate your way, mark your vehicle's clearance, or send signals to people and drivers

5 products

Aircraft Signal Lights

Mount to the top of towers to warn low-flying aircraft

2 products

Barricade Lights

Mount to barricades so they're easier to see in low-light conditions

3 products

Text Telephone Adapters

Make it easier for people who are hard of hearing or speech-impaired to use phones

1 product

Lighting

Light Bulbs

Standard household, miniature, compact, tubular, ultraviolet, infrared, and blacklight bulbs

636 products

Light Pipes

Concentrate and direct light from the bulb on a circuit board to a display

16 products

Machine and Task Lights

Shine light on work areas, within enclosures, and inside machines

10 products

Light Transmitters

Light up small and hard-to-reach areas such as the inside of models, prototypes, and circuit boards

18 products

Electrical

Electronic Component Kits

Include diodes, rectifiers, and transistors to convert current or amplify electronic signals

1 product

Measuring and Inspecting

Alignment Lasers

Project a line or dot as a reference point to ensure equipment is properly positioned

37 products

Inspection Indicators

Mount to your equipment for a signal when it's time for maintenance or inspection

4 products

Force Gauges

Test objects to see how much tension and compression force they can bear

7 products

Safety Equipment

Fire Alarms

Alert people to fires with loud warnings

4 products

Smoke Detectors

Warn people when there's smoke in your facility

1 product

Barricades

Panel, rail, cone-mount, barrel, and water-fill barricades

3 products

Multi-Gas Detectors

Monitor air for carbon monoxide and combustible gases including methane, hydrogen, and propane

3 products

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

2 products

Hydrogen Detectors

Alarms and lights alert you to the presence of hydrogen

2 products

Propane Detectors

Alarms and lights alert you to the presence of propane instantly or after a set exposure time

1 product

Methane Detectors

Alarms and lights alert you to the presence of methane instantly or after a set exposure time

1 product

Carbon Monoxide Detectors

Alarms, lights, or color changes alert you to the presence of carbon monoxide

2 products

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

2 products

Sound Level Monitors

Continuously measure ambient sound levels to confirm they fall within your programmed thresholds

2 products

Fluid Handling

Water Detector Sensors

Place near tanks, sump pumps, and pipe lines to alert you to water leaks

1 product

Building and Machinery Hardware

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

1 product