---
product_id: 85771389
title: "allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool"
brand: "allsun"
price: "₩383264"
currency: KRW
in_stock: true
reviews_count: 13
category: "Allsun"
url: https://www.desertcart.kr/products/85771389-allsun-pro-ultrasonic-leaking-detector-transmitter-auto-noise-finder-electronic
store_origin: KR
region: South Korea
---

# Noise-isolating headset included 36-44KHz ultrasonic frequency Battery-powered for portability allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool

**Brand:** allsun
**Price:** ₩383264
**Availability:** ✅ In Stock

## Summary

> 🔍 Hear the leaks others miss — stay ahead with ultrasonic precision!

## Quick Answers

- **What is this?** allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool by allsun
- **How much does it cost?** ₩383264 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/85771389-allsun-pro-ultrasonic-leaking-detector-transmitter-auto-noise-finder-electronic)

## 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:** Durable ABS build with a complete accessory kit including focusing cone and contact probe for diverse tasks.
- • **Focused Application:** Engineered specifically for air, gas, and vacuum leaks—ideal for pros who demand accuracy.
- • **Versatile Diagnostics:** Detects leaks and mechanical noises in HVAC, automotive, and industrial systems.
- • **Customizable Sensitivity:** Rotary volume control and LED intensity indicators let you isolate faint leaks in noisy environments.
- • **Precision Leak Detection:** Pinpoints air, gas & vacuum leaks with professional-grade 36-44KHz ultrasonic sensing.

## Overview

The allsun Pro Ultrasonic Leak Detector is a professional-grade tool designed to identify air, gas, and vacuum leaks by detecting high-frequency sounds (36-44KHz). Equipped with a sensitive microphone, adjustable volume, LED indicators, and a full accessory kit, it’s tailored for automotive and industrial diagnostics. Powered by 9V batteries and built with durable ABS, it excels in noisy environments but is not intended for water or plumbing leaks.

## Description

desertcart.com: allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool : Industrial & Scientific

Review: Good for refrigerant leaks. - This is very good for finding medium to large leaks on condenser coils.
Review: Didn't work for me :( - Ultrasonic leak detector didn't work for me. I first tried it on a known leak on my air compressor line. Then I tried it on a small known leak on a refrigerant system receiver nothing. Tried it on a coil, nothing. I boxed it back up and sent it back.

## Features

- 【Professional-Grade Ultrasonic Detection】This leak detector is engineered for automotive and industrial applications. It accurately pinpoints leaks by sensing the high-frequency sound (36-44KHz) produced by escaping air, gas, or vacuum leaks, helping you diagnose issues in engines, compressors, and pressurized systems with precision.
- 【Versatile & Multi-Purpose Use】Suitable for a wide range of professional uses, including detecting leaks in car air conditioning systems, industrial gas lines, vacuum systems, and air brakes. The included contact probe also allows you to listen to internal mechanical sounds from bearings, valves, and pumps for diagnostic purposes.
- 【High Sensitivity & Adjustable Volume】Features a sensitive ultrasonic microphone and a rotary volume control knob to amplify faint sounds, allowing you to filter out background noise and focus on the leak. The LED indicator lights provide a visual signal of the leak's intensity for clear confirmation.
- 【Durable Design & Complete Kit】Built for the workshop environment, this tool comes with a sturdy build and a full set of accessories, including a focusing cone for long-range detection, a contact probe for mechanical diagnosis, and a comfortable headset for audible feedback in noisy settings.
- 【Important Usage Guidance】PLEASE NOTE: This tool is designed for finding air, gas, and vacuum leaks in automotive and industrial contexts. It is not designed for detecting leaks in water pipes, plumbing, swimming pools, or tires. For best results, please use the included test leak to verify functionality before use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B8GFCDL |
| Batteries | 2 9V batteries required. |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Zinc Carbon |
| Best Sellers Rank | #52,738 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #38 in Leak Detection Tools |
| Color | Black |
| Customer Reviews | 3.4 3.4 out of 5 stars (138) |
| Date First Available | March 6, 2018 |
| Description Pile | 9V battery |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.03 pounds |
| Manufacturer | Zhangzhou Haimao Dianzi Keji Co., LTD |
| Material | ABS |
| Package Dimensions | 10.51 x 10.35 x 4.49 inches |
| Power Source | Battery |
| Warranty Description | 1 Year |

## Images

![allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool - Image 1](https://m.media-amazon.com/images/I/51Rwzw4sJ1L.jpg)

## Questions & Answers

**Q: Can underground water pipe leaks/water pipes in underground passages be detected?**
A: No. If the pipe is buried under soil or concrete, the ultrasound cannot escape to the surface, so the device will not pick it up. Our detector only senses ultrasound traveling through open air.

**Q: It can power on normally, but after startup, there is no signal at all. Is it a device issue? What can the customer do?**
A: Try using the matching ultrasonic transmitter to see if there is a signal. Perform initial tests in a quiet, indoor environment away from background noise.

**Q: Is it possible to deteck leaking from heating floor or heating pipe embedded in concrete?**
A: Sorry, EM2268 is unable to detect,It's a low pressure system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good for refrigerant leaks.
*by E***M on August 9, 2025*

This is very good for finding medium to large leaks on condenser coils.

### ⭐ Didn't work for me :(
*by J***E on May 29, 2024*

Ultrasonic leak detector didn't work for me. I first tried it on a known leak on my air compressor line. Then I tried it on a small known leak on a refrigerant system receiver nothing. Tried it on a coil, nothing. I boxed it back up and sent it back.

### ⭐⭐⭐ Better QC on product
*by B***E on October 30, 2024*

Stop functioning within a day

## Frequently Bought Together

- allsun Ultrasonic Leaking Detector Transmitter Auto Noise Finder 36-44KHz Air Gas Water Leak Diagnosis Tool
- Rectorseal 65554 8-Ounce Bottle Better Bubble Leak Locator, Blue

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*