Leak Finders | McMaster-Carr

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For Use With

Diesel Fuel Systems

Gasoline Fuel Systems

Hydraulic Systems

Hydraulic Fluid

Container Type

Applicator-Top Bottle

Plastic Carrying Case

Color

Fluorescent Blue/Green

Fluorescent Green

Fluorescent Orange

Fluorescent Red

Fluorescent Yellow

Fluorescent Yellow/Green

Container Size

Signal Type

Bubbling Action

Digital Display

Mobile App Notification

Vibrating Alarm

Power Source

Gas Leak Detected

Chlorofluorocarbon (CFC)

Compressed Gas Leak

Hydrochlorofluorocarbon (HCFC)

Hydrofluorocarbon (HFC)

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Oxygen Compatible

Dye Type

Detects

Carbon Monoxide

Hydrogen Sulfide

Toluene (Methylbenzene)

Maximum Pressure Generated

Less than 500 psi

500 psi to 999 psi

1,000 psi to 2,999 psi

3,000 psi or greater

Maximum Temperature

Less than 150° F

150° F to 199° F

200° F to 249° F

250° F to 499° F

500° F or greater

Bulb Type

Wavelength

365 nm to 400 nm

395 nm to 410 nm

Minimum Temperature

-50° F or less

-49° F to -25° F

-24° F to -1° F

0° F to 24° F

25° F or greater

Mobility

Electrical Connection

Light Technology

Voltage

Batteries Included

Environment

Food and Beverage

Mount Type

How can we improve?

247 Products

Measuring and Inspecting

Gas Leak Detectors

Gas Leak Detectors

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

Leak-Detecting Dyes

Leak-Detecting Dyes

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

Smoke Pellets

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

Smoke Pens

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

Radiation Detectors

Radiation Detectors

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

Smoke Candles

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

Fog Machines

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

Leak-Detecting Pipe Flange Covers

Leak-Detecting Pipe Flange Covers

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

Smoke Powder

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

Ultraviolet Inspection Lights

Ultraviolet Inspection Lights

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

Monoculars

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

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

Microscopes

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

Vibration Meters

Vibration Meters

Spot-check vibration to gauge the health of your machine

Compression Testers

Compression Testers

Check engine compression to maintain top performance

Thermal Cameras

Thermal Cameras

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

Combustion Analyzers

Combustion Analyzers

Measure boiler and furnace combustion efficiency

Stethoscopes

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

Fluid Handling

Test Pumps

Force air or liquid through your system to look for leaks; often called hydrostatic test pumps

Water Detector Sensors

Water Detector Sensors

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

Safety Equipment

Carbon Monoxide Detectors

Carbon Monoxide Detectors

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

Oxygen Detectors

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

Multi-Gas Detectors

Multi-Gas Detectors

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

Carbon Dioxide Meters

Carbon Dioxide Meters

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

Hydrogen Detectors

Hydrogen Detectors

Alarms and lights alert you to the presence of hydrogen

Propane Detectors

Propane Detectors

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

Methane Detectors

Methane Detectors

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

Hydrogen Sulfide Detectors

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

Fabricating and Machining

Ultraviolet Curing Lamps

Ultraviolet Curing Lamps

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

Raw Materials

Pigments and Dyes

Pigments and Dyes

Add color to liquids, mixtures, and materials

Electrical

Development Board Sensor Modules

Development Board Sensor Modules

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

Lighting

Portable Work Lights

Portable Work Lights

Bring lighting to poorly lit or completely dark areas

Communication

Audible Alarms

Everything from bells and whistles to horns and sirens

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)