---
product_id: 271144234
title: "Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black"
brand: "extech"
price: "2017 kr"
currency: DKK
in_stock: true
category: "Extech"
url: https://www.desertcart.dk/products/271144234-extech-40180-tone-generator-and-amplifier-probe-circuit-finder-kit
store_origin: DK
region: Denmark
---

# Non-contact audible wire detection RJ11 & RJ45 connectors + alligator clips Selectable continuous/variable tone Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black

**Brand:** extech
**Price:** 2017 kr
**Availability:** ✅ In Stock

## Summary

> 🎯 Trace it. Fix it. Own it.

## Quick Answers

- **What is this?** Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black by extech
- **How much does it cost?** 2017 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/271144234-extech-40180-tone-generator-and-amplifier-probe-circuit-finder-kit)

## 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

- • **Tone Control Mastery:** Switch between continuous and variable tones to isolate circuits effortlessly.
- • **Compact & Ready-to-Go:** Lightweight 280g kit powered by included 9V battery—work anywhere, anytime.
- • **Universal Connectivity:** Includes RJ11, RJ45 connectors and alligator clips for versatile cable tracing.
- • **Pinpoint with Precision:** Non-contact probe audibly identifies wires & cables for fast troubleshooting.
- • **Continuity & Identification:** Test continuity and ring/tip wiring to ensure flawless connections.

## Overview

The Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit is a professional-grade tool designed for quick and accurate wire tracing and circuit identification. Featuring non-contact audible detection, RJ11/RJ45 connectors plus alligator clips, and selectable tone modes, it streamlines troubleshooting for phone, network, and coax cables. Compact and battery-powered, it’s an essential companion for managers and technicians who demand efficiency and precision in their workflow.

## Description

Buy Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black | Cable finder, continuity test, RJ11/RJ45, alligator clips, insulated probe, 9V batteries, case online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00023RVNO |
| ASIN  | B00023RVNO |
| Batteries  | 1 Product Specific batteries required. (included) |
| Best Sellers Rank | #104,924 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #155 in Circuit Testers |
| Brand Name | Extech |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (235) |
| Customer reviews | 4.1 4.1 out of 5 stars (235) |
| Date First Available  | 1 January 2024 |
| Global Trade Identification Number | 00793950401804 |
| Included Components | Alligator clips, RJ45 and RJ11 modular connectors, 9V battery, Case |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 22.9 x 5.8 x 2.5 centimeters |
| Item Highlight | Cable finder, continuity test, RJ11/RJ45, alligator clips, insulated probe, 9V batteries, case |
| Item Weight | 0.28 Kilograms |
| Item model number  | 40180 |
| Manufacturer | Extech Instruments |
| Manufacturer  | Extech Instruments |
| Measurement Type | Electric Circuit Testing Device |
| Minimum Operating Voltage | 9 Volts (DC) |
| Model | 40180 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 40180 |
| Power Source | Corded Electric |
| Product Dimensions  | 22.86 x 5.84 x 2.54 cm; 280 g |
| Specification Met | CE |
| Style Name | 40180 |
| UPC | 785533808377 793950401804 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** Extech
- **Colour:** Black
- **Item weight:** 0.28 Kilograms
- **Power source:** Corded Electric
- **Style:** 40180

## Images

![Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black - 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

## 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

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-11-04*