--- product_id: 621237303 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: "$486.69" currency: USD in_stock: true reviews_count: 5 category: "Klein Tools" url: https://www.desertcart.us/products/621237303-et120-gas-leak-detector-combustible-gas-leak-tester-with-18 store_origin: US region: United States of America --- # 50-10,000 ppm wide detection range 85dB audible alert with 5 red LEDs 18-inch flexible gooseneck sensor 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:** $486.69 **Availability:** βœ… In Stock ## Summary > 🚨 Stay ahead of leaks with precision and power β€” Klein ET120 keeps your workspace safe and sound! ## 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?** $486.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/621237303-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 - β€’ **Dual Sensitivity Modes:** Switch between high and low sensitivity to pinpoint leaks with unmatched accuracy. - β€’ **Visual & Audible Alerts:** Five bright LEDs and a loud 85dB alarm keep you instantly informed of gas presence. - β€’ **Smart Battery Management:** Auto power-off after 10 minutes saves battery life, so you’re always ready on the job. - β€’ **Ergonomic & Durable Design:** Over-molded grip and rugged build ensure comfort and reliability in demanding environments. - β€’ **Precision Detection at Scale:** Detects methane gas from 50 to 10,000 ppm for versatile, professional-grade monitoring. ## Overview The Klein Tools ET120 Gas Leak Detector offers professional-grade methane detection with a wide 50-10,000 ppm range, adjustable sensitivity, and clear visual and audible alerts. Its 18-inch flexible gooseneck and ergonomic design make it easy to access tight spots, while smart auto-calibration and battery-saving features ensure reliable, long-lasting performance for safety-conscious professionals. ## Description Product Description Review: Flat batteries Review: Piece of mind - works a treat, highly accurate, esp when locating in a line/ appliance. Excellent. ## 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 | #496,443 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #879 in Fuel System Tools | | Brand | KLEIN TOOLS | | Built-In Media | Batteries, Carrying Pouch | | Colour | Black | | Customer Reviews | 4.5 out of 5 stars 1,780 Reviews | | Enclosure Material | Blend | | Global Trade Identification Number | 00092644690648 | | Item Dimensions D x W x H | 4.5D x 6.9W x 71.9H Centimeters | | Item Length | 28.31 Inches | | Item Type Name | Combustible Gas Leak Detector | | Item Weight | 13 Ounces | | Item Width | 1.78 Inches | | Manufacturer | Klein Tools | | Model Number | ET120 | | Operating Humidity | 85 percent | | Power Source | Battery Powered | | Product Dimensions | 4.5D x 6.9W x 71.9H Centimeters | | Product Style | Combustible Gas | | Sensor Type | Ionization | | Style | Combustible Gas | | UPC | 092644690648 | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Audible - **Brand:** KLEIN TOOLS - **Colour:** Black - **Global Trade Identification Number:** 00092644690648 - **Item Weight:** 13 Ounces - **Operating Humidity:** 85 percent - **Power Source:** Battery Powered - **Product Dimensions:** 4.5D x 6.9W x 71.9H Centimeters - **Sensor Type:** Ionization - **Style:** Combustible Gas ## 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) ![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) ![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) ![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) ![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) ## 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 ### ⭐⭐ Flat batteries *by G***. on 18 August 2022* ### ⭐⭐⭐⭐⭐ Piece of mind - works a treat, highly accurate, esp when locating in a line/ appliance. Excellent. *by T***7 on 25 June 2025* ### ⭐⭐⭐⭐⭐ Exelente *by C***3 on 18 January 2019* Excelente articulo y sin problema en el tiempo de entrega ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/621237303-et120-gas-leak-detector-combustible-gas-leak-tester-with-18](https://www.desertcart.us/products/621237303-et120-gas-leak-detector-combustible-gas-leak-tester-with-18) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*