---
product_id: 105550660
title: "REED Instruments R9100 Ultrasonic Leak Detector"
brand: "reed instruments"
price: "₩340197"
currency: KRW
in_stock: true
reviews_count: 2
category: "Reed Instruments"
url: https://www.desertcart.kr/products/105550660-reed-instruments-r9100-ultrasonic-leak-detector
store_origin: KR
region: South Korea
---

# Earphone jack + included headphones 40 kHz ultrasonic transmitter User-adjustable sensitivity wheel REED Instruments R9100 Ultrasonic Leak Detector

**Brand:** reed instruments
**Price:** ₩340197
**Availability:** ✅ In Stock

## Summary

> 🔍 Catch leaks before they catch you – precision detection for the savvy pro.

## Quick Answers

- **What is this?** REED Instruments R9100 Ultrasonic Leak Detector by reed instruments
- **How much does it cost?** ₩340197 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/105550660-reed-instruments-r9100-ultrasonic-leak-detector)

## Best For

- reed instruments enthusiasts

## Why This Product

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

## Key Features

- • **Dual Alert System:** Visual LED and audible ticking alarms ensure you never miss a leak, even in noisy environments.
- • **Compact & Portable:** Lightweight 7.2 oz design fits comfortably in your toolkit for on-the-go diagnostics.
- • **Built for Loud Worksites:** Includes earphones and a dedicated jack so you can focus on leaks without distraction.
- • **Custom Sensitivity Control:** Adjust detection sensitivity on the fly to target leaks in complex industrial settings.
- • **Pinpoint Leaks with Precision:** Detect pressure, vacuum, water, gas, or air leaks effortlessly using ultrasonic technology.

## Overview

The REED Instruments R9100 Ultrasonic Leak Detector uses a 40 kHz ultrasonic transmitter to identify leaks in pressure, vacuum, water, gas, or air systems. Featuring both LED and audible alarms, plus an earphone jack with included headphones, it’s designed for accuracy even in noisy industrial environments. Its user-adjustable sensitivity wheel allows tailored detection, all packed into a lightweight, portable device powered by 2 included 9V batteries.

## Description

Identifies and pinpoints leaks generated by pressure, vacuum, water, gas or air. This ultrasonic leak detector converts ultrasound signals produced by industrial machinery into easily recognizable audible sounds for a user to evaluate the condition of individual components. The R9100 includes a transmitter that generates a 40 kHz signal to help pinpoint leaks and headphones for use in loud environments.

Review: Not fully satisfied - I haven’t used it much but the little bit I have it doesn’t appear to work as well as the informational video.
Review: I have used expensive units. Same principle, not nearly as effective. Ok in some applications

## Features

- Locates leaks generated by pressure, vacuum, water, gas or air
- Visible (LED) and Audible (ticking) alarms assist in pinpointing leaks
- Earphone jack for loud environments (earphones included)
- User adjustable sensitivity wheel
- Ultrasonic Transmitter generates a 40 kHz signal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HRYGV82 |
| Batteries | 2 9V batteries required. (included) |
| Best Sellers Rank | #171,105 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #118 in Leak Detection Tools |
| Control Method | Touch |
| Date First Available | September 28, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.2 ounces |
| Manufacturer | REED Instruments |
| Noise Level | 80 Decibels |
| Product Dimensions | 9 x 4 x 8 inches |
| Sensor Technology | Ultrasonic Sensor |
| UPC | 800837004314 |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** REED Instruments
- **Color:** Blue
- **Number of Batteries:** 2 9V batteries required. (included)
- **Power Source:** Battery Powered

## Images

![REED Instruments R9100 Ultrasonic Leak Detector - Image 1](https://m.media-amazon.com/images/I/51V3LwSwgjL.jpg)

## Customer Reviews

### ⭐⭐⭐ Not fully satisfied
*by D***R on March 29, 2024*

I haven’t used it much but the little bit I have it doesn’t appear to work as well as the informational video.

### ⭐⭐ Review
*by J***. on June 26, 2021*

I have used expensive units. Same principle, not nearly as effective. Ok in some applications

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**Shop now:** [https://www.desertcart.kr/products/105550660-reed-instruments-r9100-ultrasonic-leak-detector](https://www.desertcart.kr/products/105550660-reed-instruments-r9100-ultrasonic-leak-detector)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-28*