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Leak Detectors

Leak detectors help you quickly determine where a system is leaking. For closed systems such as air conditioning or vacuum lines, an ultrasonic detector works well. On cooling systems or fuel tanks, a smoke generator often gives better results. A vacuum pump is useful for pressure testing tight systems. When buying, consider the application and medium: air, gas or liquid. That way you pick the right type for your workshop and avoid hours of searching.

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Choosing a leak detector

Which version suits your job?

A leak detector works in three ways: ultrasonic, smoke or vacuum. Ultrasonic finds leaks in closed systems, such as air conditioning or vacuum lines. A smoke generator works well on cooling systems and fuel tanks. A vacuum pump tests the seal of systems under pressure or vacuum. Choose the version that matches the medium you check: air, gas or liquid.

Where ordering goes wrong

Many mechanics order a leak detector without checking the medium. As a result, the detector does not work on liquid systems or is not sensitive enough for small leaks. Always check whether the device suits your application. An ultrasonic detector is quick, but not suitable for open systems. A smoke generator finds even small leaks, but requires a sealed system.

Why the standard matters

Leak detection has no fixed standards for all systems. However, the device must meet the requirements of the system you test. For air conditioning, use a leak detector suitable for refrigerant. For vacuum lines, you need a vacuum pump with a gauge. Check the specifications of the leak detector, such as measuring range and sensitivity. This prevents you from buying a device that does not do what you need.

A leak detector falls under the test devices for the workshop. For testing air conditioning systems, look at air conditioning test devices. If you work with gas lines or fuel systems, a gas detector fits in. For checking vacuum actuators and EGR valves, use vacuum guns.