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10 Best Ultrasonic Leak Detectors in 2024

Often we come across situations where we find that gas is leaking from the refrigerator. There are many such leaking incidents, however, detection of these gases seem to be tough. A leak in devices varying pressurized gases is uncalled for and can be very catastrophic if goes unchecked. Looking for a device that can easily detect leaks from any source such as the air conditioner or the refrigerator compressor? Check out ultrasonic leak detectors. As efficient as it can be, this will help in establishing a secure environment.

Well, in this ultrasonic leak detectors’ buying guide, you will find out what are the characteristics a product must-have. And also know how these products are better in comparison to others.


List of Best Ultrasonic Leak Detectors in 2024

10. INFICON Ultrasonic Leak Detector 711-202-G1

Inficon Ultrasonic Leak Detectors

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If you have the INFICON Ultrasonic Leak Detector 711-202-G1, then you can detect any such leaks easily. This device intelligently uses ultrasonic sound waves to detect even the smallest of leaks. You can even listen to the leak thanks to the added headphones that come with the device. It is ideal to pick up signals from leaks for all kinds of gases.

Furthermore, it also has a laser pointer that helps you to pinpoint the location of the leaks. This is a sensitive device that can get you results even when you are operating it in a noisy environment.

Key Features:

  • It is super-efficient with power consumption and works fine with just two D cell batteries.
  • This is proudly the only device that is capable of tracing and detecting nitrogen leaks.
  • You use this even when the environment is very busy and noisy.

9. Amprobe TMULD-300 Ultrasonic Leak Detector


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The Amprobe TRULD-300 Ultrasonic Leak Detector is an impressive device crafted in and imported from the USA. This is a device loaded with an ultrasonic transmitter and sensitive sensors. The sensors can take up signals that indicate even the smallest and most insignificant of leaks. It also has a parabola horn that can detect such leaks from a distance, even in noisy areas.

Furthermore, the package also comes with a headphone. As a result, it is ideal to easily listen to the sound of the leaks.

Key Features:

  • Every component is entirely from polyester material. Therefore, top-notch quality makes it the best in the market.
  • It is due to the presence of ultrasonic sensors that you get to detect the leaks.
  • Whether you are looking for N2 leaks or you are looking for the source of chlorofluorocarbons, this ultrasonic leak detector efficiently takes up signals from all gaseous leaks.

8. SuperiorAccuTrak VPE-GN Gooseneck Leak Detector

Superior Signal Ultrasonic Leak Detectors

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Yes, this is a specialized instrument that can detect leaks from all kinds of sources and all the gases. It uses a 9.5-inches gooseneck that allows you to easily reach even the most far off and unreachable spots. The sensors are excellent and can even detect the sound of a blink.

This device comes with a converter that can tone ultrasound sound into an audible sound for your convenience. However, you can easily distinguish the leak sound from other surrounding noises.

Key Features:

  • Features dimensions of just 17-inches length x 14-inches width x 7-inches thickness allowing you to easily store it.
  • The 6 lbs device is so lightweight that you can easily carry it with you anywhere you want to.
  • It makes use of visual output 10 element bar graph to give a very user-friendly status about the procedure.

7. Amprobe ULD-300 Leak Detector


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Amprobe is a recognized maker of leak detecting device and the ULD-300 Leak Detector does not fail the standards. This amazing device comes with everything that you may need to find out even the smallest of leaks. It even comes with a storage bag to keep the device away safely when you are not using it. You can attach the included extension tube to the device if you are having difficulty reaching a tough spot.

Finally, this can track all kinds of gaseous leaks from refrigerators, air conditioners, vacuum, valves, bearings, and so on.

Key Features:

  • Has a parabola horn that is very efficient in detecting leaks from a distance even in a noisy environment.
  • The handy device comes packed together with a handy headphone. Hence, makes it even easier to listen to the sounds and detect the leak faster.
  • You get a carrying case to smoothly pick it up and carry it.

6. AccuTrack VPE Leak Detector

AccuTrak Ultrasonic Leak Detectors

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AccuTrak is a trusted name when you are looking for leak detectors. And the VPE Leak Detectors lives to its name. This is a compact, lightweight, and handy device that you can use to get to the source of even the most minuscule leaks. The sensors are excellent and can detect small leaks flowing out at a rate of even 1.5 Oz every year.

Furthermore, the sensors can pick up leaks from any kind of gases and converts the high-frequency ultrasound to regular sound for your convenience. However, adequate technology ensures that you can totally differentiate the sound of a leak from ambient noise.

Key Features:

  • Comes in a durable storage bag that keeps the device safe and out of reach when not in use.
  • Everything that you need to detect leaks like a headphone or an extension tube is included in the package for your convenience.
  • This is a corded product that runs on electricity and gives it an extra edge.

5. allsun Pro Ultrasonic Leak Detector


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Do you want an innovative and portable leak detection device that is also very reliable? Well, you do not have to look further than the allsun Pro Ultrasonic Leak Detector. This is a small and device that you can even carry in your pocket but has impressive applications. It can detect leaks in tubes carrying pressurized gas and even in vacuums. Such leaks emit ultrasonic waves which the sensors in this device can easily detect and convert to audible noise.

As a matter of fact, the machine is built to detect sounds in the range of 36 kHz to 44 kHz. Therefore, allowing you to easily listen to and pinpoint even the smallest leaks.

Key Features:

  • You are even allowed to adjust the volume of sound being transmitted through the headphone in this device.
  • This is pretty small and you can carry it in your bag as well.
  • The two tips option at 70 mm and 290 mm is great to ensure seamless detection of all kinds of leaks, big or small.

4. BELEY Ultrasonic Leak Detector

BELEY Ultrasonic Leak Detectors

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The BELEY Ultrasonic Leak Detector is a trusted device that you can add to your arsenal. Whether you are looking for a leak in a pressurized tube or in a vacuum container, this device is efficient in finding all of them. The sensors are excellent and can even detect the smallest of leaks. Next, it is tuned to detect vibrations at around 40 kHz, which is the range for ultrasonic vibrations.

Furthermore, the package comprises the device and a pair of headphones that make detecting leaks even easier. You are also indicated of a leak through a LED light feature ingrained into this device.

Key Features:

  • This useful device will require the power from just a 9V battery to function.
  • It is a small and handy device with a dimension of only 171 mm x 43 mm x 38 mm. Plus, this has a weight of 240 grams allowing you to easily carry it around.
  • This is ideal to operate in a temperature range anywhere 0-degrees C to 40-degrees C.

3. AccuTrak VPE Pro Plus Leak Detector


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AccuTrak is a renowned name when it comes to leak-detecting devices and thus this is the third product to make it to the list. The VPE Pro Plus, like other AccuTrak devices, is loaded with an extremely sensitive sensor. As a result, can easily and efficiently detect different kinds of gaseous leaks from all kinds of sources. The device can detect even the smallest of leaks in a pressurized tube or a vacuum device or in valves even in a noisy environment.

You also get noise-canceling headphones to attach to this device which helps you to better listen to the sound of the leak.

Key Features:

  • Comes with a large carrying case wherein you can store all the items efficiently when not using them.
  • The device was heterodyning capabilities that efficiently translate the sound from a higher frequency into sound to a lower frequency to make it audible.
  • Even if there are a couple of background noises, this will clearly detect without any interference.

2. Robinair 16455 Leak Detector

Robinair Ultrasonic Leak Detectors

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The Robinair 16455 Leak Detector is a reliable device to get if you are looking for ultrasonic leak detectors. Comes with an excellent sensor, this can easily detect leaks into a vacuum or out from a tube carrying pressurized gases. The device has both audio and visual indicators allowing you a versatile interface. Plus, never giving a chance to miss a leak. The device is paired with an extendable flex tube that you can use to reach the spots that are very difficult to reach.

The added headset is a handy addition as it helps you to better locate the leak. This device works absolutely fine even if the surrounding is noisy.

Key Features:

  • All the items that you need to use to detect leaks come with a padded case. Thus, aids in efficiently storing it and carrying it.
  • You can power this device using just a single V battery which will serve you a long time.
  • One can adjust both sensitivities of both the audio as well as visual indicators accordingly.

1. Gain Express Ultrasonic Leak Detector

Gain Express

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This is a simple yet powerful device that can detect all kinds of leaks. It has an effective sensor that can detect ultrasonic waves in the range of 40 kHz. If air is flowing into a vacuum container or pressurized gas is flowing out of a tube such as in a refrigerator, this device can identify the leak in no time.

The testing rod is 134 mm long. Therefore, allowing you to easily reach the nooks and corners which are difficult to reach. The device has an LED output feature along with the ticking sound. As a result, increases in frequency as you get nearer to the source of the leak!

Key Features:

  • A single, simple 9V battery is more than enough to get this amazing device running and detecting leaks.
  • This is a small handheld device that is so lightweight that you can easily carry it from place to place with any issues.

Keep your environment safe from any harmful leaks. The compact ultrasonic leak detector promotes a healthy environment and prevents the occurrences of any accidents.