Leak Detectors | McMaster-Carr

Filter by

Gas Leak Detected

Chlorofluorocarbon (CFC)

Hydrochlorofluorocarbon (HCFC)

Hydrofluorocarbon (HFC)

Hydrogen

Hydrogen Sulfide

Methane

Methanol (Methyl Alcohol)

Container Type

Aerosol Can

Applicator-Top Bottle

Plastic Carrying Case

Alert Type

Mobile App Notification

Power Source

System of Measurement

Container Size

Electrical Connection

Measures

Carbon Monoxide Level

Combustion Efficiency

Equivalent Carbon Dioxide

Maximum Temperature

Oxygen Compatible

Export Control Classification Number (ECCN)

Color

Fluorescent Blue/Green

Fluorescent Yellow/Green

For Use With

Gasoline Fuel Systems

Display Type

REACH

Environment

Detects

Toluene (Methylbenzene)

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Minimum Temperature

Voltage

Mount Type

For Use On

Light Technology

Wavelength

215 Products

Measuring and Inspecting

Gas Leak Detectors

Find gas leaks in pipes, tubes, fittings, tanks, cylinders, and valves

34 products

Water Detectors

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

2 products

Leak-Detecting Dyes

Bright colors help you spot leaks in water and hydraulic systems without using ultraviolet light

30 products

Smoke Pens

Produce smoke to observe airflow and detect leaks in HVAC systems; reusable, unlike smoke candles

2 products

Smoke Candles

Light the wick for a short burst of smoke to observe airflow and detect leaks in HVAC systems

4 products

Smoke Powder

No flame needed—release a burst of powder to detect airflow and leaks in HVAC systems

3 products

Leak-Detecting Pipe Flange Covers

Wrap around pipe flanges to show when there's a leak and contain it

33 products

Fog Machines

Produce a continuous fog to observe airflow and detect leaks in HVAC systems

2 products

Smoke Pellets

Detect airflow and leaks in HVAC systems near server rooms and other areas with electronics

4 products

Radiation Detectors

Test for radiation, even in low amounts or from microwave ovens

6 products

Monoculars

Magnify still objects from far away to view features you couldn't see with the naked eye

1 product

Microscopes

Enlarge the view of small parts and samples for inspection and assembly

1 product

Ultraviolet Inspection Lights

Shine on equipment to detect traces left behind by leaks, rodents, and other contaminants

14 products

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

3 products

Ultraviolet Inspection Light Bulbs

Illuminate fluorescent dyes, particles, and residues to spot defects

10 products

Combustion Analyzers

Measure boiler and furnace combustion efficiency

3 products

Thermal Cameras

Detect hot spots, leaks, moisture problems, and construction defects invisible to the eye

5 products

Vibration Meters

Spot-check vibration to gauge the health of your machine

1 product

Compression Testers

Check engine compression to maintain top performance

2 products

Stethoscopes

Detect internal mechanical problems like worn parts, excessive vibration, and fluid leaks

8 products

Safety Equipment

Carbon Dioxide Meters

Measure and display real-time carbon dioxide levels for indoor ventilation quality

1 product

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

Multi-Gas Detectors

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

8 products

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

3 products

Radiation Dose Meters

Attach to your pocket or nearby objects to track the accumulated radiation you've been exposed to

3 products

Carbon Monoxide Detectors

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

8 products

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

6 products

Hydrogen Detectors

Alarms and lights alert you to the presence of hydrogen

4 products

Communication

Alarm Buzzers

Mount indoors and create a loud, vibrating noise

1 product

Electrical Power, Networking, and Controlling

Electronic Component Assortments

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

1 product

Development Board Sensor Modules

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

2 products

Lighting

Portable Work Lights

Bring lighting to poorly lit or completely dark areas

1 product

Flashlights

Direct a beam of light to precisely where it's needed

2 products

Light Bulbs

Standard household, miniature, compact, and tubular bulbs

2 products

Fabricating and Machining

Ultraviolet Curing Lamps

Cure adhesives and sealants, inspect parts for quality, or detect leaks

14 products