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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Extech 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

Extech 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

Product ID: 2175290

Details

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

🎯1kHz precision tone generator

🔋Battery-powered, zero downtime

🛡️Insulated probe tip for safety

¥40299

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Trace Smarter, Work Faster, Stay Safe — The Pro’s Wire Whisperer

SAFETY FIRST ALWAYS - Insulated inductive probe tip prevents accidental shorts, protecting your circuits and gear.
FIELD READY DURABLE - Compact, rugged design with included carrying case and replaceable 9V batteries keeps you working nonstop.
UNIVERSAL CONNECTIVITY - Includes alligator clips plus RJ11/RJ45 connectors for instant, secure testing on any wire setup.
ALL IN ONE DIAGNOSTIC POWERHOUSE - Trace cables, test continuity, and check telephone line status with one versatile kit.
PINPOINT ACCURACY ZERO GUESSWORK - Audibly identify specific wires in complex bundles with high-sensitivity probe—save hours on every job.

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 amplifier probe, and insulated tip for safety, it audibly identifies wires in complex bundles while testing continuity and telephone line conditions. With versatile connectors (alligator clips, RJ11/RJ45), battery-powered portability, and a rugged carrying case, it delivers reliable, on-the-go diagnostics that save time and prevent costly errors.

Specifications

ASIN	B00023RVNO
Best Sellers Rank	#410,739 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #73 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

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¥40299

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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