10 Best Ultrasonic Leak Detectors 2024

INFICON Whisper – ⭐ Best Overall Ultrasonic Leak Detector

711-202-G1 by Inficon

• Weight: 3 pounds
• Dimensions: 15 x 3.8 x 8.5 inches

• Detects pressure and vacuum leaks for all gases
• Hear the leak using the included headphones
• Works even in noisy environments
• Laser pointer makes it easier to pinpoint the leak
• Applications include pressure/vacuum leaks, electrical arcing, malfunctioning steam traps, and more
• Only technology to detect pressurized nitrogen leaks
• Runs on two D-cell alkaline batteries
• Rugged carrying case included
• Two-year replacement warranty
• Made in the United States, US Technician Support via Email and Phone

Amprobe ULD-300 Ultrasonic Leak Detector

ULD-300 by Amprobe

• Weight: 1.39 pounds
• Warranty: One Year Limited Warranty

• Senses pressurized leaks, detects electrical arcing, and finds failing solenoids, valves, and bearings
• Ultrasonic sensor converts ultrasonic frequencies to an audible range so they can be heard
• Detects any pressurized leaking gas, including chlorofluorocarbon (CFCs), hydrofluorocarbon (HFCs), nitrogen (N), carbon dioxide (CO2), and steam
• Parabola horn aids leak detection from a distance and in noisy areas
• Extension tube provides additional reach for access to remote leaks

Superior AccuTrak VPE-GN PRO Gooseneck Ultrasonic Leak Detector Professional Kit

VPE-GN PRO by Superior Signal

• Gooseneck Configuration: allows operator to get accurate readings in hard to reach places.
• Audio Output: 0 Hz to 4 kHz Natural Sound conversion allows you to Hear the Leak, and distinguish
• Adjustable Sensitivity: allows operator to quickly identify leaks from a distance, and then zero
• Dimension - 17 x 7 x 14 in.

allsun Ultrasonic Detect Tool Stethoscope Gas Liquid Leak Detector Trouble – 💲 Best Budget Ultrasonic Leak Detector

by allsun

• Color: Blue

• 【WHAT YOU GET】This tool consists of an ultrasound receiver, a tone generator, an air probe, a contact probe and a headphone. Please kindly note it, battery(9V, 6F22 or equivalent, 2 pieces) are not includes.
• 【WIDELY APPLICATION】The detector is a very useful diagnostic test tool which can reduce downtime and maintenance related costs of the tested equipments. Air/Vacuum Leaks; Gas and Liquid Turbulence; Electrical Discharge; Mechanical Wear; Sound Generation.
• 【THE RECEIVER PERFORMANCE】The receiver is sensitive to ultrasonic in the frequency range of 36k to 44kHz Audio feedback and a 10 bar LED indicator for visual intensity of signal, 33mm directional receiver port, 3.5mm stereo jack and a rotary on/off volume control switch.
• 【ACCURATE & RELIABLE】The 30cm air probe serves to extend reach or to facilitate isolating a leak among multiple suspect areas. This Ultrasonic Diagnostic Tool is easy to carry and operate, and its detection result is accurate and reliable.
• 【TONE GENERATOR PERFORMANCE】The Tone Generator emits a warble output centered at 40kHz for use in testing seal integrity in non-pressurized vessels. The human ear cannot hear this output, so the Tone Generator must be used in conjunction with the Receiver.

INFICON Whisper with Accessory Kit

711-203-G1 by Inficon

• Weight: 0 pounds

• Includes: Whisper, Premium headphones, Metal contact probe, Whisper Transmitter, (with battery), Rubber extension probe, Two D-size alkaline batteries, Rugged carrying case
• Detects pressure and vacuum leaks for all gases
• Hear the leak using the included headphones
• Works even in noisy environments
• Laser pointer makes it easier to pinpoint the leak
• Applications include pressure/vacuum leaks, electrical arcing, malfunctioning steam traps, and more
• Only technology to detect pressurized nitrogen leaks
• Runs on two D-cell alkaline batteries
• Two-year replacement warranty
• Made in the United States, US Technician Support via Email and Phone

Amprobe-ULD-410 ULTRASONIC Leak Detector – 👑 Premium Pick

ULD-410 by Amprobe

• Weight: 0.52 pounds
• Dimensions: 7.5 x 3 x 1.8 inches

• 20 kHz to 90 kHz frequency range: optimal range for detecting a variety of leakage events
• 3 filters to remove main noise frequencies in noisy environments
• 2. 5” LCD display with bargraph
• Quality headphones to help identify the source of the leak

allsun Pro Ultrasonic Leak Detector Automotive Sensing Pressure Vacuum System

by allsun

• Color: Black

• 【ULTRASONIC TECHNOLOGY】This instrument uses ultrasonic sensing technology and features small size and light weight. It is reliable and easy to use and is a practical,portable tool.
• 【WORKING PRINCEPLE】Turbulence created by gas or air forced through a small office generates ultrasoncic sound. Ultrasonic sound occurs when the atmosphere leaks into a vacuum vessel or when a pressure vessel leaks to the outside atmosphere.
• 【FREQUENCY】Ultrasonic sound's frequency is related to the size of the orifice which ultrasonic sound passes through, but usually the frequency is about 40kHz. Frequency Response: 36kHz-44kHz.
• 【WIDELY APPLICATION】 Machine Abnormal Noise Detect; By using this instrument, you can quickly and accurately locate leaks in any pressure and vacuum system. Suitable for detecting cracks of pipes, valves,oil tank and other sealed compartment.
• 【WHAT YOU GET】Leak detector; Ultrasonic probe; Ultrasonic microphone; Ultrasonic TRANSMITTER; Extension tube; Probe tips,70mm and 290mm; Headphone(with volume adjuster).

ALLOSUN Ultrasonic Leak Detector & Transmitter Air Water Dust Leak

EM282 by ALLOSUN

• Weight: 0.44 pounds
• Dimensions: 2 x 1.2 x 7.9 inches

• Power supplied by 2 pieces 9V, 6F22 battery.(Battery Provided)
• Quick and simple location of air,water, dust leaks.
• Place the transmitter in the vehicle and close the doors and windows.
• Trace the detector around outside of the screen, windows and door seals to locate the leak.
• Includes adjustable headphone for detector.

allsun Ultrasonic Leak Detector & Transmitter Air Water Dust Leak

EM282 by allsun

• The ultrasonic leak detector can quick and simple location ultrasonic caused by air, liquid, dust leak
• The detector can detect the air or liquid leakage by detecting ultrasonic caused by high pressor leakage
• It can trace the detector around outside of the screen, windows and door seals to locate the leak
• The leak detector tool includes adjustable headphone for detector, 2 LED lights
• Power supplied by 2 pieces 9V, 6F22 battery, comes with earphone and carrying bag

Amprobe TMULD-300 Ultrasonic Leak Detector with Transmitter

TMULD-300 by Amprobe

• Weight: 1.74 pounds
• Warranty: One Year Limited Warranty

• Senses pressurized leaks, detects electrical arcing, and finds failing solenoids, valves, and bearings
• Comes with a transmitter that emits an ultrasonic frequency to help locate leaks that are not pressurized enough to emit frequencies the detector can pick up
• Ultrasonic sensor converts ultrasonic frequencies to an audible range so they can be heard
• Detects any pressurized leaking gas, including chlorofluorocarbon (CFCs), hydrofluorocarbon (HFCs), nitrogen (N), carbon dioxide (CO2), and steam
• Parabola horn aids leak detection from a distance and in noisy areas
• Tests the “air-tightness” of weather seals, tanks, ovens, refrigerators, etc.
• Locating leaks in duct work
• Finds the ends of buried PVC pipes
• Detects any pressurized gas leak regardless of type CFC’s, HFC’s, Nitrogen, etc. (unaffected by contaminants)
• Transmits an ultrasonic signal for non pressurized applications