Do you have to use the transmitter or can it locate passive cables behind a wall without it?

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.

If I have both ends of a house wire exposed, how would I hook up to check if I have the correct wire?

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.

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?

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

How many feet will this work for?

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

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40180 Tone Generator and Amplifier Probe Wire Tracer Kit | Cable finder, continuity test, RJ11/RJ45, alligator clips, insulated probe, 9V batteries, case

Product ID: 2175290

Details

Brand
Extech
Color
Black
Item Weight
0.28 Kilograms
Power Source
Battery
Style
40180

🎯High-sensitivity wire tracing

🔋Battery-powered, zero downtime

🔌RJ11/RJ45 & alligator clip compatibility

€ 225.59

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🔍 Trace it. Test it. Trust it. The pro’s wire whisperer.

SAFETY FIRST ALWAYS - Insulated inductive probe tip prevents accidental shorts, protecting your circuits and expensive gear.
FIELD READY DURABILITY - Heavy-duty case and replaceable 9V batteries keep you powered and organized without downtime.
UNIVERSAL CONNECTIVITY - Includes alligator clips plus RJ11 and RJ45 connectors for instant, secure testing on virtually any wire setup.
ALL IN ONE DIAGNOSTIC POWERHOUSE - Trace cables, test continuity, and check telephone line conditions with one versatile kit designed for pros.
PINPOINT PRECISION ZERO GUESSWORK - Audibly identify specific wires in complex bundles with a high-sensitivity probe that saves hours on the job.

The Extech 40180 Tone Generator and Amplifier Probe Kit is a rugged, battery-powered wire tracing and cable testing solution featuring high-sensitivity audible detection, continuity testing, and multi-connector compatibility. Designed for electricians and network pros, it offers safe, precise diagnostics with insulated probes, alligator clips, RJ11/RJ45 connectors, and a durable carrying case for seamless field use.

Specifications

ASIN	B00023RVNO
Best Sellers Rank	#267,294 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #60 in Circuit Tracers & Analyzers
Brand Name	Extech
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (244)
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
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 Name	40180
UPC	785533808377 793950401804
Unit Count	1.0 Count
Upper Temperature Rating	40 Degrees Celsius
Warranty Description	1 year

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€ 225.59

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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