---
product_id: 71114185
title: "allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool"
brand: "allsun"
price: "€ 258.89"
currency: EUR
in_stock: true
reviews_count: 10
category: "Allsun"
url: https://www.desertcart.hr/products/71114185-allsun-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact
store_origin: HR
region: Croatia
---

# 36-44kHz ultrasonic frequency for precise detection LED bar graph for visual leak intensity feedback Battery-powered with 9V alkaline for portability allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool

**Brand:** allsun
**Price:** € 258.89
**Availability:** ✅ In Stock

## Summary

> 🔍 Detect leaks like a pro—because every second counts!

## Quick Answers

- **What is this?** allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool by allsun
- **How much does it cost?** € 258.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/71114185-allsun-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact)

## Best For

- allsun enthusiasts

## Why This Product

- Trusted allsun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Ready:** Compact ABS body powered by replaceable 9V batteries, built to perform reliably in up to 95% humidity and 40°C environments.
- • **Comfort-Driven Design:** Rotary volume knob lets you fine-tune headphone sound to avoid fatigue during long inspections—work smarter, not harder.
- • **Versatile Tone Generator:** Test enclosure seals and non-pressurized spaces effortlessly, perfect for automotive QA and building diagnostics.
- • **Pinpoint Leaks in Seconds:** Dual air and contact probes detect faint air leaks, electrical discharges, and mechanical faults with surgical precision.
- • **Intuitive Leak Localization:** Combine LED bar graph visuals with headphone audio cues to zero in on leaks even when signals are subtle.

## Overview

The allsun Ultrasonic Leak Detector Diagnostic Stethoscope operates at 36-44kHz ultrasonic frequencies using dual air and contact probes to identify air leaks, electrical discharges, and mechanical faults. Featuring a rotary volume control, LED bar graph, and tone generator, it offers precise, fatigue-free inspections for automotive and industrial applications. Powered by 9V alkaline batteries, its durable ABS construction withstands humid and warm environments, making it an essential tool for professionals demanding accuracy and efficiency.

## Description

DIY Tool Visit the Store DIY Tool Visit the Store Ultrasonic Leak Detector Visit the Store Ultrasonic Leak Detector Based on ISO9001 International Quality System, most products are exported to Europe and USA with approvals of CE, UL, GS, CMC. We have wide product range to meet different purchased requirements. The main products contain Digital Multimeters, Metal Detectors, Ultrasonic Measures, Infrared testers.One-stop style make purchase easy,and greatly reduce purchase cost,shorten purchase time and assure purchase quality control. Based on ISO9001 International Quality System, most products are exported to Europe and USA with approvals of CE, UL, GS, CMC. We have wide product range to meet different purchased requirements. The main products contain Digital Multimeters, Metal Detectors, Ultrasonic Measures, Infrared testers.One-stop style make purchase easy,and greatly reduce purchase cost,shorten purchase time and assure purchase quality control. Metal Detector Visit the Store Metal Detector

Review: Tech 50 years. - Works very well,I am in the a/c and refrigeration business. And it works very well. You just haft to learn the sound, and understand it works of of sound waves. Would highly recommend it.
Review: Works great in auto repair shop, much better than the bluepoint mic. - Pinpointed an axle bearing growl with shop radio right next to you. The bearing was barely bad and thought it could be the carrier (in diff) bearing but was axle bearing. This tool nailed it. Been using the Bluepoint microphone for over a decade or more, that thing going in garbage, had better luck with using a hose or screw-driver to pick up noise. Tried to use on injectors but secondary voltage too noisy when that close. But it's awesome away from secondary noise.

## Features

- 【DETECT LEAKS IN SECONDS】Locate even faint air leaks, electrical coronas, and internal mechanical issues (like failing bearings, valve leaks, or steam trap faults) using directional air and contact probes. The LED bar graph and adjustable headphone volume provide dual confirmation for accurate leak localization.
- 【DUAL PROBES FOR INSPECTIONS】Includes specialized probes: The Air Probe excels at detecting pressurized leaks & electrical discharges (test by rubbing fingers 60cm away for a "sandpaper-on-wood" response). The Contact Probe is ideal for diagnosing ultrasound within machinery casings (gears, bearings, valves, steam traps) - simply rub the probe rod tip.
- 【OPTIMIZED DETECTION & OPERATOR COMFORT】Features a rotary volume knob for precise headphone adjustment. Set volume just above background hiss for maximum sensitivity without fatigue. Remember: Higher volume doesn't increase sensitivity, correct setup prevents exhaustion during long inspections.
- 【TEST ENCLOSURE SEALS & LOCATE LEAKS EFFICIENTLY】Includes a Tone Generator to check seal integrity in non-pressurized spaces (e.g., car doors/windows/roofs, enclosures). Place the generator inside (or near suspect areas for large spaces), then sweep the receiver to find leaks. Suitable for automotive QA and building diagnostics.
- 【INTUITIVE SCANNING TECHNIQUES】Utilize the LED graph and headphone sound together to zero in on leaks. As you approach the leak source, decrease headphone volume to refine location based on LED intensity. Effective even for slight leaks where LED movement is minimal.Power supply is 9 V alkaline battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BBPGZN8 |
| Alarm | Audible, Visual |
| Best Sellers Rank | #97,122 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #85 in Leak Detection Tools |
| Brand | allsun |
| Color | Blue |
| Customer Reviews | 4.0 out of 5 stars 49 Reviews |
| Enclosure Material | ABS |
| Item Weight | 2.16 Pounds |
| Manufacturer | Zhangzhou Haimao Dianzi Keji Co., LTD |
| Operating Humidity | 95 percent |
| Power Source | Battery Powered |
| Product Style | Enclosure Seal Tester |
| Sensor Type | Ultrasonic |
| Style | Enclosure Seal Tester |
| UPC | 788537552277 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** allsun
- **Style:** Enclosure Seal Tester
- **Power Source:** Battery Powered
- **Color:** Blue
- **Item Weight:** 2.16 Pounds
- **Alarm:** Audible, Visual
- **Operating Humidity:** 95 percent
- **Upper Temperature Rating:** 40 Degrees Celsius
- **Sensor Type:** Ultrasonic
- **Material:** ABS

## Images

![allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool - Image 1](https://m.media-amazon.com/images/I/61oeBDMG-1L.jpg)
![allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool - Image 2](https://m.media-amazon.com/images/I/61SzWB5KezL.jpg)
![allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool - Image 3](https://m.media-amazon.com/images/I/61B0LGWZRXL.jpg)
![allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool - Image 4](https://m.media-amazon.com/images/I/71vXdo-kl2L.jpg)
![allsun Ultrasonic Leak Detector Diagnostic Stethoscope 36-44kHz Air/Contact Probe,Kit w/Rotary Volume,Tone Generator,Find Vacuum Gas Seal Faults,Auto& Industrial Leak Detection Tool - Image 5](https://m.media-amazon.com/images/I/61QqwcY1g8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tech 50 years.
*by G***M on May 11, 2026*

Works very well,I am in the a/c and refrigeration business. And it works very well. You just haft to learn the sound, and understand it works of of sound waves. Would highly recommend it.

### ⭐⭐⭐⭐⭐ Works great in auto repair shop, much better than the bluepoint mic.
*by W***X on April 11, 2025*

Pinpointed an axle bearing growl with shop radio right next to you. The bearing was barely bad and thought it could be the carrier (in diff) bearing but was axle bearing. This tool nailed it. Been using the Bluepoint microphone for over a decade or more, that thing going in garbage, had better luck with using a hose or screw-driver to pick up noise. Tried to use on injectors but secondary voltage too noisy when that close. But it's awesome away from secondary noise.

### ⭐⭐⭐⭐ Works well, but the tube can pick up interference.
*by A***M on April 2, 2025*

Extremely accurate, but can be tricked by the tubes in tight spaces. Try using it without the tubes if there is too much background noise.

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**Shop now:** [https://www.desertcart.hr/products/71114185-allsun-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact](https://www.desertcart.hr/products/71114185-allsun-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-24*