---
product_id: 46812326
title: "Klein Tools 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: "₱17684"
currency: PHP
in_stock: true
reviews_count: 13
category: "Klein Tools"
url: https://www.desertcart.ph/products/46812326-klein-tools-et120-gas-leak-detector-combustible-gas-leak-tester
store_origin: PH
region: Philippines
---

# 50-10,000 ppm wide detection range 85dB audible alert with intensity scaling 18-inch flexible gooseneck sensor reach Klein Tools 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:** ₱17684
**Availability:** ✅ In Stock

## Summary

> 🔥 Sniff out leaks before they become headlines! 🛠️

## Quick Answers

- **What is this?** Klein Tools 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?** ₱17684 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/46812326-klein-tools-et120-gas-leak-detector-combustible-gas-leak-tester)

## 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

- • **Flexible Reach, Compact Storage:** 18-inch gooseneck sensor bends to access tight spots and clips neatly for on-the-go convenience.
- • **Precision Detection at Your Fingertips:** Detect combustible gases from as low as 50 ppm up to 10,000 ppm for unmatched accuracy in any environment.
- • **Dual Sensitivity Modes for Tailored Safety:** Switch effortlessly between high and low sensitivity to pinpoint leaks with professional-grade precision.
- • **Ergonomic Durability Meets Smart Efficiency:** Comfort grip with over-molded body plus auto power-off to extend battery life during long workdays.
- • **Visual & Audible Alerts That Command Attention:** Five bright red LEDs and a loud 85dB alarm escalate with gas concentration, ensuring you never miss a threat.

## Overview

The Klein Tools ET120 Gas Leak Detector is a professional-grade combustible gas tester designed for HVAC pros and safety-conscious managers. Featuring a wide detection range of 50 to 10,000 ppm, dual sensitivity settings, and both visual and audible alerts, it ensures precise and reliable gas leak identification. Its flexible 18-inch gooseneck sensor and ergonomic design make it easy to use in tight spaces, while smart features like auto calibration and power-saving auto shutoff maximize accuracy and battery life. Trusted by professionals since 1857, this tool delivers peace of mind with every sniff.

## 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.

Review: Excellent, easy to use tool. - I tired other "sniffers" that were just completely worthless. This tool is very simple to operate and conclusively confirms whether there is a gas leak--and if so, where it is coming from. The variable response alert system shows the intensity of any leak, or even better, no leak at all. It is very clear, thereby imparting full confidence in the results. (Because it showed I did not have a leak at the time, I tested this by opening an unlit gas burner and "searched" for it. It worked perfectly.) An invaluable, easy too use tool for all-important peace of mind. Highly recommend.
Review: What a great nose this thing has! - I had an outdoor gas leak that I could not locate. My cheap gas detector registered nothing, when I could clearly smell gas. I purchased this unit and put it to work. Much better sensitivity, it clearly registered flammable gas when I could even faintly smell it. With a little patience, walking around the area, I was able to zoom in on sections with multiple bars and a louder audible pitch. I zeroed in to a section of pipe where I got maxed out readings and found a worn area of the pipe that was leaking. A little more expensive, but worth it, it works well.

## 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 |
|---------------|-------|
| ASIN | B074NBJ8XP |
| Alarm | Audible |
| Batteries | 4 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #10,395 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Gas Detectors & Alarms |
| Brand | KLEIN TOOLS |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,842) |
| Date First Available | August 8, 2017 |
| Description Pile | 4 x AAA |
| Display Style | Digital |
| Finish | Brushed |
| Global Trade Identification Number | 00092644690648 |
| Included Components | Batteries, Carrying Pouch |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 13 ounces |
| Item model number | ET120 |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement System | Metric |
| Number of Items | 1 |
| Operating Humidity | 85 percent |
| Part Number | ET120 |
| Pattern | Detector |
| Power Source | Battery Powered |
| Product Dimensions | 1.79"D x 2.71"W x 28.3"H |
| Shape | Rectangular |
| Special Features | Audible Alert, Auto-Power Off, Visual Notification |
| Style | Standard |
| UPC | 092644690648 |
| Warranty Description | Please refer to attached warranty document. |

## Product Details

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

## Images

![Klein Tools 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)
![Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries - Image 2](https://m.media-amazon.com/images/I/61FQhJ20FVL.jpg)
![Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries - Image 3](https://m.media-amazon.com/images/I/61lZl4XK5YL.jpg)
![Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries - Image 4](https://m.media-amazon.com/images/I/51yHBzjM8NL.jpg)
![Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50-10,000 ppm, Includes Pouch, Batteries - Image 5](https://m.media-amazon.com/images/I/416y2suebhL.jpg)

## Available Options

This product comes in different **Style** options.

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, easy to use tool.
*by T***G on July 11, 2025*

I tired other "sniffers" that were just completely worthless. This tool is very simple to operate and conclusively confirms whether there is a gas leak--and if so, where it is coming from. The variable response alert system shows the intensity of any leak, or even better, no leak at all. It is very clear, thereby imparting full confidence in the results. (Because it showed I did not have a leak at the time, I tested this by opening an unlit gas burner and "searched" for it. It worked perfectly.) An invaluable, easy too use tool for all-important peace of mind. Highly recommend.

### ⭐⭐⭐⭐⭐ What a great nose this thing has!
*by J***W on December 13, 2025*

I had an outdoor gas leak that I could not locate. My cheap gas detector registered nothing, when I could clearly smell gas. I purchased this unit and put it to work. Much better sensitivity, it clearly registered flammable gas when I could even faintly smell it. With a little patience, walking around the area, I was able to zoom in on sections with multiple bars and a louder audible pitch. I zeroed in to a section of pipe where I got maxed out readings and found a worn area of the pipe that was leaking. A little more expensive, but worth it, it works well.

### ⭐⭐⭐⭐⭐ Klein gas detector
*by B***F on March 3, 2026*

Very prompt shipment. Klein gas sniffer is of professional quality. I found a small gas leak in newly installed hot water heater. Plumber had the same sniffer and laughed when he saw mine.

## 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 Philippines*
*Store origin: PH*
*Last updated: 2026-03-10*