--- product_id: 2175290 title: "40180 Tone Generator and Amplifier Probe Circuit Finder Kit - Heavy Duty Wire Tracer and Cable Tester with Alligator Clips, RJ11/RJ45 Connectors - Battery Powered Wire Tracking Tool" brand: "extech" price: "β‚©351077" currency: KRW in_stock: true reviews_count: 13 category: "Extech" url: https://www.desertcart.kr/products/2175290-40180-tone-generator-and-amplifier-probe-circuit-finder-kit-heavy store_origin: KR region: South Korea --- # 1kHz signal precision Battery-powered, no downtime Insulated probe tip safety 40180 Tone Generator and Amplifier Probe Circuit Finder Kit - Heavy Duty Wire Tracer and Cable Tester with Alligator Clips, RJ11/RJ45 Connectors - Battery Powered Wire Tracking Tool **Brand:** extech **Price:** β‚©351077 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Trace it. Test it. Trust it. The pro’s wire whisperer. ## Quick Answers - **What is this?** 40180 Tone Generator and Amplifier Probe Circuit Finder Kit - Heavy Duty Wire Tracer and Cable Tester with Alligator Clips, RJ11/RJ45 Connectors - Battery Powered Wire Tracking Tool by extech - **How much does it cost?** β‚©351077 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/2175290-40180-tone-generator-and-amplifier-probe-circuit-finder-kit-heavy) ## Best For - extech enthusiasts ## Why This Product - Trusted extech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Customizable Signal Modes:** Switch between continuous and variable 'wobble' tones to cut through interference and adapt to any environment. - β€’ **All-in-One Diagnostic Powerhouse:** Trace cables, test continuity, and check telephone line conditions with versatile RJ11/RJ45 connectors and alligator clips included. - β€’ **Pinpoint Accuracy, Zero Guesswork:** Audibly identify specific wires in complex bundles with a powerful 1kHz tone generator and adjustable sensitivity probe. - β€’ **Built for Safety, Designed for Pros:** Insulated inductive probe tip prevents accidental shorts, protecting your circuits and expensive equipment on every job. - β€’ **Field-Ready Durability & Convenience:** Compact, rugged housing with included carrying case and replaceable 9V batteries means no downtime and easy transport. ## Overview The Extech 40180 Tone Generator and Amplifier Probe Kit is a professional-grade wire tracing and cable testing tool designed for electricians, network engineers, and technicians. Featuring a powerful 1kHz tone generator, adjustable sensitivity probe with insulated tip for safety, and versatile connection options including alligator clips and RJ11/RJ45 connectors, it enables fast, accurate identification and testing of wires and cables. Battery-powered with rugged construction and a carrying case, it’s built for reliable, on-the-go use in complex wiring environments. ## Description Product Description The Ultimate Diagnostic Companion for Every Wire and Cable. Never get lost in a sea of unlabeled cables again. The Extech 40180 Tone Generator and Amplifier Probe Kit is an industrial-grade solution designed to make cable identification fast, safe, and incredibly simple. Whether you are troubleshooting a complex server room, mapping out a home renovation, or verifying telephone line conditions, this kit provides the audible and visual clarity you need to get the job done right the first time. Pro-Grade Performance Without the Complexity. This kit is engineered for reliability. The tone generator emits a powerful 1kHz signal that cuts through interference, while the amplifier probe features an adjustable volume and sensitivity control to pinpoint the exact wire you're looking for. With the ability to switch between a continuous or "wobble" tone, you can customize your signal to match the environment. Safety and Versatility at its Core. Safety is paramount in electrical work, which is why the 40180 features an insulated tip to prevent shorts during testing. The kit also includes a continuity tester that glows bright green for low resistance, and a multi-color LED indicator to identify telephone line conditions like Clear, Busy, or Ringing. What’s Included: Amplifier Probe with built-in speaker and headphone jack Tone Generator with selectable output Heavy-duty Alligator Clips for non-terminated wires Modular RJ11 and RJ45 connectors for data/telecom lines Two 9V batteries for immediate out-of-the-box use Rugged Nylon Carrying Case From the Manufacturer Non-contact probe audibly identifies selected wire or cable. Trace phone, computer network and coax cables. Tone generator is terminated with RJ11 and RJ45 connectors plus alligator clips. Selectable continuous or variable tone. Continuity and ring/tip identification test Review: Fantastic investment - I am an IT consultant who mostly does software and server-room stuff. Occasionally I get asked to do network wiring for office expansions; and for those I usually defer or sub out to electricians or phone guys. On a recent rush-job project, the electrician pulled the cables, but was too busy to wire up keystones and plates, so I had to step in to finish up the install. This device was perfect for identifying cable endpoints. While it may be overkill for my needs, it did the job very well, and it's comforting to know I now own a tool I can depend on. Review: As good as it gets - I have been using this "toner" kit for more than a year now on a nearly daily basis and it works very well. I use it in an industrial environment for identifying circuit wiring for things such as street and area lighting, motor wiring, instrumentation wiring and the like. It is one of the most used and most useful items in my tool collection and has proven to be very durable and reliable over this entire time. This is a great product for what is was designed to do. ## Features - PRECISION WIRE TRACING: Stop the guessing game and start finding. This high-sensitivity probe audibly identifies specific wires or cables within complex bundles, saving you hours of tedious manual tracing and frustration on the job site. - ALL-IN-ONE TESTING SUITE: Beyond simple tracing, this kit handles continuity testing, tip/ring identification, and telephone line condition checks. It is the versatile powerhouse for electricians, network engineers, and savvy home technicians. - BUILT-IN SAFETY FEATURES: The insulated inductive probe tip is designed to prevent accidental shorting of conductors. Work with total peace of mind knowing your expensive equipment and critical circuits are protected while you hunt for signals. - ADAPTABLE CONNECTION OPTIONS: Whether you are working with non-terminated wires or modular jacks, the included alligator clips and RJ11/RJ45 connectors provide instant, secure links to almost any telephone or internet wiring setup. - READY FOR THE FIELD: Powered by easily replaceable 9V batteries, this kit requires zero downtime for charging. The compact, heavy-duty housing and included carrying case ensure your gear stays organized and protected in your professional tool bag. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00023RVNO | | Best Sellers Rank | #369,306 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #72 in Circuit Tracers & Analyzers | | Brand | Extech | | Brand Name | Extech | | Color | Black | | Customer Reviews | 4.1 out of 5 stars 244 Reviews | | Global Trade Identification Number | 00793950401804 | | Included Components | Alligator clips, RJ45 and RJ11 modular connectors, 9V battery, Case | | Item Dimensions | 9 x 2.3 x 1 inches | | Item Weight | 0.28 Kilograms | | Item dimensions L x W x H | 9 x 2.3 x 1 inches | | Manufacturer | Extech | | Measurement Type | LCR Meter | | Minimum Operating Voltage | 9 Volts (DC) | | Model | 40180 | | Part Number | 40180 | | Power Source | Battery Powered | | Specification Met | CE | | Style | 40180 | | Style Name | 40180 | | UPC | 785533808377 793950401804 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 40 Degrees Celsius | | Warranty Description | 1 year | ## Product Details - **Brand:** Extech - **Color:** Black - **Item Weight:** 0.28 Kilograms - **Power Source:** Battery Powered - **Style:** 40180 ## Images ![40180 Tone Generator and Amplifier Probe Circuit Finder Kit - Heavy Duty Wire Tracer and Cable Tester with Alligator Clips, RJ11/RJ45 Connectors - Battery Powered Wire Tracking Tool - Image 1](https://m.media-amazon.com/images/I/511CFHWq73L.jpg) ## Questions & Answers **Q: Do you have to use the transmitter or can it locate passive cables behind a wall without it?** A: You can locate 60Hz lines behind a wall to some extent, without the transmitter: The probe will make a louder 120Hz buzzing noise as it is moved closer to cables. **Q: If I have both ends of a house wire exposed, how would I hook up to check if I have the correct wire?** A: You connect the transmitter to a pair of wires in the room, either raw ends or in an RJ11 telephone jack. Turn it on. Turn on the probe and check that the toner is working. Go go to NID, where all the house wiring starts. The tone can be hear is you are near the wire, louder on the outside of the cable, very loud when actually touch the correct pair of wires. **Q: Is it easy for a beginner to use? Does it easily hook up to the wire or do I need to cut into the plastic surrounding the wire?** A: It's easy to connect and you don't need to cut into the insulator, but the problem I had with the tool is: the signal is so sensitive that I wasn't able to tell if the wire was cut, because all the wires I was testing were in a harness **Q: How many feet will this work for?** A: i was using it very successfully at over 70 feet. The lines I was tracing were up and over in a building. So i really do not know the exact distance. but it worked great ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fantastic investment *by 8***E on June 20, 2013* I am an IT consultant who mostly does software and server-room stuff. Occasionally I get asked to do network wiring for office expansions; and for those I usually defer or sub out to electricians or phone guys. On a recent rush-job project, the electrician pulled the cables, but was too busy to wire up keystones and plates, so I had to step in to finish up the install. This device was perfect for identifying cable endpoints. While it may be overkill for my needs, it did the job very well, and it's comforting to know I now own a tool I can depend on. ### ⭐⭐⭐⭐⭐ As good as it gets *by A***L on June 27, 2007* I have been using this "toner" kit for more than a year now on a nearly daily basis and it works very well. I use it in an industrial environment for identifying circuit wiring for things such as street and area lighting, motor wiring, instrumentation wiring and the like. It is one of the most used and most useful items in my tool collection and has proven to be very durable and reliable over this entire time. This is a great product for what is was designed to do. ### ⭐⭐⭐⭐ GOOD tool! *by T***J on April 19, 2015* GOOD tool!! remember: turn off power to the line youre testiong: extraneous noise can confuse your interpretation.. tkjtkj, mech.eng., m.d. ******************* My criteria: 5-star: does the job well, with extra advantages 4-star: does the job well 3-star: helpful but doesn't accommodate all needs that one would expect 2-star: sketchy performance at best 1-star: Fails in significant ways ; but they showed up for evaluation 0-star: Where are they hiding??? ## Frequently Bought Together - Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black, Heavy Duty Wire Tracer - General Technologies Corp GTC CT6100 Fuse Socket Connector Kit , Yellow - ES Electronic Specialties 142-5 Flexible Silicon Back Probe Pin, RED, BLACK --- ## 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.kr/products/2175290-40180-tone-generator-and-amplifier-probe-circuit-finder-kit-heavy](https://www.desertcart.kr/products/2175290-40180-tone-generator-and-amplifier-probe-circuit-finder-kit-heavy) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-06*