Triplett Fox & Hound 3399 Premium Wire and Cable Tracing Kit with Tone Generator and Probe with Adjustable Sensitivity

Could not get a reliable result after many attempts. Waste of money.

If you are looking for a product that was designed by an Engineer instead of a Marketeer, and with a manual that is written by an Engineer rather than a Technical Writer, then this is it! To be sure, it does have its flaws: The manual is the size of a credit card, with 62 pages of tiny text - I read the PDF on the web instead. The plastic housing lacks the finer fit and finish of more modern products. And, the spaces for the 9V batteries are cramped, making it very difficult to close the covers without a bulge remaining. I also have the $80 Extech 40180, and this product is in quite a different class, with the following additional features: 1. It is provided with a conductive metal probe tip, in addition to the insulated plastic tip. 2. Probe has a signal strength LED, in addition to the speaker / headphone jack. 3. Probe also acts as flashlight, allowing probing in dark spaces without having to turn on noisy fluorescent lights. 4. The injector box has a speaker, in addition to the speaker which is present in the probe. 5. Continuity test has an Audible Tone mode, in addition to Lit LED mode. 6. Tracer tone can be changed between Warble and Pulse without having to open case. 7. TrueTrace feature allows detecting which pair of wires signal is injected in to, by shorting at far end and listening for a change in the pulse rate. 8. It is designed to survive accidental connection across 120 Vac. 9. Injector can be connected to the base-station of a cordless phone, to wirelessly send its test tone to the phone's headsets. This allows you to use the TrueTrace capability at a distant location, even if the probe would not pick up an adequate signal, or would be overwhelmed by 60 Hz related noise. (Though not mentioned in its manual, the Extech can also drive the base-station of a cordless phone, however, without the TrueTrace feature, this is not of much use.) Jumpers inside injector's case also allow: 1. Disable speaker. 2. Disable TrueTrace. 3. Change tone to a higher pitch. 4. Change Warble tone to Continuous tone (The Extech does have a slide switch inside the case to do this). The manual is very clearly written, by someone with a deep understanding and considerable experience in using this product under a variety of difficult test conditions. It would be the envy of Hewlett Packard, which was once known for its excellent user manuals! Note, though, if you are not technically inclined you may find the manual overwhelming, and may prefer the Extech's 4-page manual instead.

Bought this to trace dead 120V AC branch in mid-century built house. Worked as expected and the sensitivity control allowed tracing of wiring embedded in walls and ceilings. Took about 30 minutes to locate the break. IMPORTANT!!! If you are tracing household AC wiring make CERTAIN the breaker for the dead circuit is switched off before connecting the fox device. If you have an intermittent break and you jiggle wires while tracing them you could apply full 120 or 240V AC to the fox, which will destroy it. The supplied case is a bit too small making it difficult to get the fox and its wiring in so you can close the velcroed flap.

We work in the power plant industry, which has 10's of thousands of cables/conductors. These 'toners' are stellar in their performance. Triplett's price point may be a little above average, but you get what you pay for! Being trustworthy and durable is more valuable than the initial cost! Buy it! You'll be glad you did!

Bought it to trace data wires works great