---
product_id: 71114185
title: "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: "233701CFA"
currency: XOF
in_stock: true
reviews_count: 10
category: "Allsun"
url: https://www.desertcart.sn/products/71114185-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact-probe
store_origin: SN
region: Senegal
---

# 36-44kHz ultrasonic frequency for precise leak detection Rotary volume knob for fatigue-free, sensitive listening Dual air & contact probes for versatile industrial diagnostics 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:** 233701CFA
**Availability:** ✅ In Stock

## Summary

> 🔍 Hear the leaks others miss — stay ahead with allsun Ultrasonic Leak Detector!

## Quick Answers

- **What is this?** 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?** 233701CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/71114185-ultrasonic-leak-detector-diagnostic-stethoscope-36-44khz-air-contact-probe)

## 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

- • **Ergonomic Volume Control:** Rotary knob lets you fine-tune headphone volume to avoid fatigue during long inspections.
- • **Pinpoint Leaks in Seconds:** Detect faint air leaks, electrical discharges, and mechanical faults with ultrasonic precision.
- • **Dual Probes for Every Scenario:** Switch seamlessly between air and contact probes to inspect pressurized leaks or internal machinery sounds.
- • **Intuitive LED & Audio Feedback:** Combine LED bar graph and headphone cues to zero in on leaks—even the slightest ones—like a pro.
- • **Seal Integrity Testing Made Easy:** Use the included tone generator to quickly verify vacuum, gas, and enclosure seals in automotive and industrial settings.

## Overview

The allsun Ultrasonic Leak Detector is a professional-grade diagnostic tool operating at 36-44kHz ultrasonic frequencies, equipped with dual air and contact probes, a rotary volume control, and an LED bar graph for precise leak localization. Ideal for automotive, HVAC, and industrial applications, it detects air leaks, electrical coronas, and mechanical faults quickly and accurately, supported by a tone generator for seal testing. Powered by a 9V battery and built with durable ABS housing, it offers ergonomic, fatigue-free operation for managers and technicians who demand reliable, efficient leak detection.

## 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

![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)

## 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.

## Frequently Bought Together

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

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-07-15*