---
product_id: 46812326
title: "ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries"
brand: "klein tools"
price: "₩368118"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/46812326-et120-gas-leak-detector-combustible-gas-leak-tester-with-18
store_origin: KR
region: South Korea
---

# 50-10,000 ppm detection range 85dB audible alert 18-inch flexible gooseneck ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries

**Brand:** klein tools
**Price:** ₩368118
**Availability:** ✅ In Stock

## Summary

> 🚨 Detect with confidence, work without worry!

## Quick Answers

- **What is this?** ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries by klein tools
- **How much does it cost?** ₩368118 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/46812326-et120-gas-leak-detector-combustible-gas-leak-tester-with-18)

## Best For

- klein tools enthusiasts

## Why This Product

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

## Key Features

- • **Dual Sensitivity Modes:** Switch between high and low sensitivity to pinpoint leaks with unmatched accuracy.
- • **Smart Power Management:** Auto shut-off after 10 minutes saves battery life so you’re always ready when it counts.
- • **Ergonomic & Durable Design:** Over-molded grip and rugged build keep you comfortable and confident on the job.
- • **Precision Detection at Scale:** Wide 50-10,000 ppm range covers all combustible gas levels for ultimate safety assurance.
- • **Alert System That Commands Attention:** Five bright red LEDs plus a loud 85dB alarm ensure you never miss a warning.

## Overview

The Klein Tools ET120 Gas Leak Detector offers professional-grade combustible gas detection with a broad 50-10,000 ppm range and adjustable sensitivity. Featuring an 18-inch flexible gooseneck for hard-to-reach spots, it combines visual and audible alerts for immediate leak identification. Designed for durability and comfort, it includes smart auto-calibration and power-saving features, making it an essential tool for safety-conscious professionals.

## Description

The ET120 is it the perfect choice for HVAC professionals. It is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm. It features two levels of sensitivity depending on users' needs: High (approximately 50 to 1000 ppm) and Low (approximately 1,000 to 10,000 ppm). For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

## Features

- WIDE DETECTION RANGE: Detect gas concentrations from approximately 50 to 10,000 ppm* (*based on Methane) for versatile gas monitoring
- ADJUSTABLE SENSITIVITY: Choose between High (50 to 1000 ppm) and Low (1000 to 10,000 ppm) sensitivity levels for accurate gas detection
- ENHANCED VISUAL AND AUDIBLE ALERTS: Stay alerted with five red LED's (visual) and 85dB audible alerts that intensify as gas concentration increases
- EASY CALIBRATION: Automatic zero-point calibration at power-up ensures accuracy; flashing lights during self-calibration, no gas presence indicated
- FLEXIBLE GOOSENECK DESIGN: Expand the sensor's reach with the 18-inch flexible gooseneck that conveniently clips onto the meter for storage
- COMFORTABLE AND DURABLE: Over-molded body provides a comfortable grip for prolonged use and is designed to withstand demanding environments
- BATTERY SAVING FEATURE: Auto power-off after 10 minutes of non-usage conserves battery life, ensuring long-lasting operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KLEIN TOOLS |
| Style | Combustible Gas |
| Power Source | Battery Powered |
| Color | Black |
| Product Dimensions | 1.79"D x 2.71"W x 28.3"H |
| Item Weight | 13 Ounces |
| Alarm | Audible |
| Operating Humidity | 85 percent |
| Global Trade Identification Number | 00092644690648 |
| Material | Blend |
| Number of Items | 1 |
| Manufacturer | Klein Tools |
| UPC | 092644690648 |
| Part Number | ET120 |
| Item Weight | 13 ounces |
| Item model number | ET120 |
| Batteries | 4 AAA batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Finish | Brushed |
| Pattern | Detector |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Measurement System | Metric |
| Display Style | Digital |
| Special Features | Audible Alert, Auto-Power Off, Visual Notification |
| Included Components | Batteries, Carrying Pouch |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | 4 x AAA |
| Warranty Description | Please refer to attached warranty document. |

## Product Details

- **Brand:** KLEIN TOOLS
- **Style:** Combustible Gas
- **Power Source:** Battery Powered
- **Color:** Black
- **Product Dimensions:** 1.79"D x 2.71"W x 28.3"H
- **Item Weight:** 13 Ounces
- **Alarm:** Audible
- **Operating Humidity:** 85 percent
- **Global Trade Identification Number:** 00092644690648
- **Material:** Blend

## Images

![ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries - Image 1](https://m.media-amazon.com/images/I/518x8T44SuL.jpg)

## Questions & Answers

**Q: Does this detect hydrogen sulfide?**
A: you will have to call them.  1-800-553-4676.  I was unable to find any info. methane, butane and propane and others*  but that doesnt say H2S specifically.

**Q: Can it be used for car?**
A: It will detect gasoline fumes but is not a carbon monoxide detector.

**Q: Will this detect hydrogen**
A: No

**Q: Will it work for r290 refrigerant?**
A: Although I have never tried it on refrigerant. The unit is made to detect combustible gasses. As is stated in the specs.

## Frequently Bought Together

- Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
- Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector with Exposure Limit Alarm, 4 x AAA Batteries and Carry Pouch Included

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-31*