--- 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: "174602CFA" currency: XOF in_stock: true reviews_count: 13 category: "Klein Tools" url: https://www.desertcart.sn/products/46812326-klein-tools-et120-gas-leak-detector-combustible-gas-leak-tester store_origin: SN region: Senegal --- # 18-inch flexible gooseneck for hard-to-reach spots 85dB audible alarm with escalating intensity Auto zero-point calibration for precision 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:** 174602CFA **Availability:** ✅ In Stock ## Summary > 🚨 Detect leaks before they become disasters — Klein ET120 keeps you one step ahead! ## 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?** 174602CFA 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/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 - • **Reach Every Nook:** 18-inch flexible gooseneck sensor extends your reach into tight, tricky spaces effortlessly. - • **Stay Alert, Stay Safe:** Five bright red LEDs plus a loud 85dB alarm escalate with gas concentration, ensuring you never miss a leak. - • **Smart Power Management:** Auto shut-off after 10 minutes saves battery life so your detector is ready when you are. - • **Built for the Long Haul:** Ergonomic over-molded grip and rugged design withstand demanding jobsite conditions with ease. - • **Precision Detection at Your Fingertips:** Detects combustible gases from 50 to 10,000 ppm with adjustable sensitivity for tailored accuracy. ## Overview The Klein Tools ET120 Gas Leak Detector is a professional-grade combustible gas tester designed for HVAC and safety pros. Featuring a wide detection range (50-10,000 ppm), adjustable sensitivity, and an 18-inch flexible gooseneck, it delivers precise, reliable alerts through visual LEDs and an 85dB audible alarm. Its ergonomic, durable design and smart auto-calibration ensure accuracy and comfort during extended use, while battery-saving auto shut-off maximizes uptime. Trusted by professionals since 1857, this tool offers peace of mind and unmatched performance on every job. ## 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: Worked fine! - I had a gas fume leak somewhere on my car.That was getting inside the car and this little tool did the trick and helped me locate and fix the problem! Very pleased! ## 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 | | Best Sellers Rank | #7,965 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Gas Detectors & Alarms | | Brand | KLEIN TOOLS | | Built-In Media | Batteries, Carrying Pouch | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 1,861 Reviews | | Enclosure Material | Blend | | Global Trade Identification Number | 00092644690648 | | Item Dimensions D x W x H | 1.79"D x 2.71"W x 28.3"H | | Item Type Name | Combustible Gas Leak Detector | | Item Weight | 13 Ounces | | Manufacturer | Klein Tools | | Manufacturer Warranty Description | Please refer to attached warranty document. | | Mfr Part Number | ET120 | | Model Number | ET120 | | Number of Items | 1 | | Operating Humidity | 85 percent | | Power Source | Battery Powered | | Product Dimensions | 1.79"D x 2.71"W x 28.3"H | | Product Style | Standard | | Style | Standard | | UPC | 092644690648 | | Unit Count | 1.0 Count | ## 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) ## 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. ### ⭐⭐⭐⭐⭐ Worked fine! *by A***R on April 13, 2026* I had a gas fume leak somewhere on my car.That was getting inside the car and this little tool did the trick and helped me locate and fix the problem! Very pleased! ### ⭐⭐⭐⭐⭐ 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/46812326-klein-tools-et120-gas-leak-detector-combustible-gas-leak-tester](https://www.desertcart.sn/products/46812326-klein-tools-et120-gas-leak-detector-combustible-gas-leak-tester) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-24*