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AccuTrak VPE-GN (Gooseneck) Ultrasonic Leak Detector

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AccuTrak VPE-GN (Gooseneck) Ultrasonic Leak Detector

AccuTrak VPE-GN (Gooseneck) Ultrasonic Leak Detector

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VPE-GN (Gooseneck) Ultrasonic Leak Detector by Superior AccuTrak

The Patented Superior AccuTrak® VPE-GN “Gooseneck” represents state-of-the-art technology for pinpointing leaks in air conditioning and refrigeration systems. The new 9˝” flexible Gooseneck provides better detection in hard-to-reach places, and is great for automotive applications too. AccuTrak® is extremely sensitive to the ultrasonic sound of a turbulent gas leak. Using the latest "heterodyning" technology it translates the sound to a lower frequency which your ear can interpret. The VPE-GN maintains the original sound characteristics making it possible to distinguish leaks from other competing background sounds. AccuTrak® is so sensitive you can actually hear the blink of an eye, yet most background noise will not interfere with detection accuracy. Like all Superior AccuTrak® instruments, the VPE-GN easily detects leaks of ANY gas or refrigerant, compressed air, and even vacuum leaks.

VPE-GN - Standard Kit

Superior AccuTrak® advanced patented technology has never been so versatile! The AccuTrak® VPE-GN Standard Kit offers all the functionality and features of the VPE Basic Kit – but with the sensor on the end of a 9-1/2” long flexible GooseNeck to get into all those hard-to-reach places. The VPE-GN Standard Kit is great for technicians in the Automotive industry, or any others who need to find tough leaks or other airborne ultrasound in tight spaces, behind obstructions, or inside an assembly. As with all AccuTrak® instruments, the VPE-GN finds leaks for any kind of gas or refrigerant without changing tips or components. Works equally well to find compressed air leaks, nitrogen leaks – even vacuum leaks! AccuTrak® can find leaks as small as the equivalent of 1.5 oz per year of refrigerant, or can hear a 5 psi leak up to 30 feet away.

Kit Includes:

  • VPE-GN Leak Detector
  • Headset
  • Battery
  • Hard Case
  • Waveguide

VPE-GN - Professional Kit

The AccuTrak® VPE-GN Professional Kit is designed for technicians who work in noisy places, or who regularly need to find smaller leaks. With the sensor at the end of the 9-1/2” long flexible GooseNeck you get full sensitivity all the way into those hard-to-reach places. The VPE-GN Professional Kit includes all the great features of our VPE-GN Standard Kit upgraded with professional Noise Cancelling Headphones and a larger case to keep everything together. These high quality headphones eliminate all background noise, allowing a technician to effectively find the smallest leaks – even in very loud environments. You can choose the standard style professional headphones, or the hardhat compatible version – same price!

Kit Includes:

  • VPE-GN Leak Detector
  • Battery
  • Waveguide
  • Noise Blocking Headphones
  • Large Carry Case

VPE-GN - Plus Kit

The AccuTrak® VPE-GN Plus Kit is designed for technicians looking to take full advantage of all the VPE-GN’s many capabilities. The VPE-GN Plus Kit includes everything in our Standard Kit – PLUS our powerful Burst Tone Sound Generator! The sophisticated Burst Tone can artificially pressurize any vessel or space with ultrasonic sound, allowing a technician to quickly scan for leaks even where there is no actual pressure differential! The VPE-GN Plus Kit is ideal for technicians who test refrigerator door and window seals, or any other non-pressurized seal or vessel. The VPE-GN Plus Kit is also great for Energy Audits and Surveys, and finding air leaks and sources of air infiltration in homes, aircraft, ships, and buildings.

Kit Includes:

  • VPE-GN Leak Detector
  • Headset
  • Battery
  • Hard Case
  • Waveguide
  • Sound Generator

VPE-GN - Pro-Plus Kit

The AccuTrak® VPE-GN Pro-Plus Kit is our most comprehensive VPE-GN Kit, for the serious technician who needs the maximum capability from an ultrasonic instrument with a GooseNeck. The VPE-GN Pro-Plus Kit includes the upgraded professional Noise Cancelling Headphones PLUS the powerful Burst Tone Sound Generator, in the larger case to keep everything together. The VPE-GN Pro-Plus Kit offers unrivaled functionality and versatility for a fraction of the cost of any competitive system with similar performance. Find any kind of leak, in any environment, find bad gaskets and door seals – and do it all well, in hard-to-reach places you can’t even see! If you do a variety of work, and need a cost effective professional kit that can do it all, the Superior AccuTrak® VPE-GN Pro-Plus Kit is for you.

Kit Includes:

  • VPE-GN Leak Detector
  • Battery
  • Waveguide
  • Sound Generator
  • Noise Blocking Headphones
  • Large Carry Case


  • Leak Detection: Air, Vacuum, Refrigerants; ANY GAS!
  • Steam Traps: Detect live steam loss in seconds!
  • Valves: Detect/hear internal leakage in check, ball, needle, gate or any type of valve! Diagnose thermal expansion valves in just five minutes!
  • Bearing Wear: Hear wear and lubrication problems before damage is done!


  • 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 leaks from mechanical or other background ultrasound.
  • Visual Output: 10 element bar graph provides quick and intuitive visual indication to presence of and relative strength of ultrasound.
  • Adjustable Sensitivity: allows operator to quickly identify leaks from a distance, and then zero in on the exact location of the leak.


  • Capable of detecting a 5 psi leak out of a 0.005" (5/1000 inch) hole, 20 to 30 feet away depending on background noise.
  • Easily detects any gas that generates ultrasonic sound during flow – including vacuum leaks.
  • Capable of detecting leaks equivalent to 1.5 oz/year of Refrigerant.
  • Works equally well for compressed Air or Nitrogen.
  • Not affected by wind or high concentrations of leaked gas or refrigerant.

Kits for Every Application

Whether you only need the basic functions of the VPE-GN or you plan to take full advantage of the instrument's diverse capabilities, we have a kit that will meet your needs! Click the "Find Your Kit" tab above to learn more.

Advantages Versus Sniffers

  • AccuTrak® VPE is a much more accurate and reliable instrument for detecting single and multiple leaks.
  • AccuTrak® VPE can detect any type of refrigerant gas including nitrogen.
  • AccuTrak® VPE detects both vacuum and pressure leaks.
  • AccuTrak® VPE is effective in gas saturated areas and under windy conditions.
  • AccuTrak® VPE does not require the introduction of tracer gases into the system, which can be ozone depleting when vented, and can also be harmful to ones health.
  • AccuTrak® VPE is battery powered for cordless operation

Advantages versus other Ultrasonic Leak Detectors

  • AccuTrak® VPE is #1 in technology. We wrote the book on ultrasonic leak detection, our patented instruments lead the industry!
  • AccuTrak® VPE is the original! it is not a copy.
  • AccuTrak® VPE is the most durable unit available, with the best warranty. The face of the unit is sealed with no pin holes/speakers for foreign objects to enter.
  • AccuTrak® VPE has more dynamic range, and wont overload in loud areas.
  • AccuTrak® VPE gives true audio sound reproduction instead of the "beeps and squeals" of other instruments.
Shape Mostly Parallelepiped
Dimensions (LWD) 4.15” (10.5cm) X 2.4" (61mm) X .875" (22.22mm)
Overall Length 5.5” (14cm)
Body Materials ABS
Body Finish Blue ABS
Connector 3.5mm Stereo
Top Label Velvet Lexan, Back Printed
Weight 0.3lb (138gr) Includes Battery
Airborne Sensor Sensitivity -80db/V-µbar
Detection Performance* 1.5oz/yr Refrigerant
Ultrasound Converter type Heterodyne
Frequency response, AirBorne 36kHz-42kHz
Heterodyne Oscillator Analog
Heterodyne Filter 4kHz
Controls 1 Button
Sensitivity Control Continually Variable Slide
Output, Audio 0Hz to 4kHz
Output, Visual 10 Element Bar Graph
Battery Type 9 Volt
Run Time 80-120 hrs

Datasheets & User Manuals

Questions & Answers