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📞 Genuine NF816 Subterranean Electrical Telephone Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.7
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Description of 📞 Genuine NF816 Subterranean Electrical Telephone

Helpful-locating & tracking buried and hidden wires and other hidden-wires. Only for wires & cables, NOT FOR sprinkler or irrigation valves. Easily locate pet fence wires, metals wires, metals pipes, electrical wires, ect. Locate-Determining Which Receptacles are on specific circuits,track-Pinpointing Drill Sites before drilling. Wire tracer range-up to 2 feet deep and 1000 feet in length. WARNING: Do not use on live circuits to avoid damaging the Tester! This device is ONLY to locate non-energized Cable. WARNING: Only for single-core or two-core parallel wire, NOT FOR multi-core wire and bundled wires. 9V batteries is NOT included.

Reviews

Global ratings 3
  • 5
    2
  • 4
    1
  • 3
    0
  • 2
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  • 1
    0

Type of review

Revainrating 4 out of 5

Throw away the documentation and read the reviews posted on this site.

Documentation sucks. It took me three days to figure it out. Here's what you need to know to trace an underground wire: a) DISCONNECT power to that wire. Buy one of these touch testers (lights up when the cable is live) to be 100% sure. Is Your Life Worth $26? b) Disconnect the black wire from the control box. c) Connect the red wire NF-816) Here's the first trick: Don't connect it to the neutral or ground wire in the switch box. Instead, take a long screwdriver and drive it into the ground…

Pros
  • Very good price
Cons
  • Exorbitant price

Revainrating 5 out of 5

Works if you know how the tool works. Need better guidance.

This is version 1.0 of the product and it has some bugs, so be prepared. The instruction manual is a poor translation and seems to have been written by someone who didn't understand the theory behind this device. However, it can certainly serve a purpose. I traced a 50 foot pipe buried about 14 inches deep to within a few inches. I used nylon rope to show the exact path. The trick is knowing which mode to use. The device I have (October 2014) has a 'battery check' which is used to pass current…

Pros
  • Best
Cons
  • Ugly packaging

Revainrating 5 out of 5

Works as advertised

This unit received mixed reviews so I doubted it would work. The documentation isn't great, but after playing with it I can report that it did a great job of locating the sprinkler wires that were buried about 16 inches deep. After setting it up, it took me about 10 minutes to accurately locate over 200 feet of underground cable. I think some of the negative reviews are due to operator error, meaning they didn't understand how this device was supposed to work. I found that it actually works two

Pros
  • Quality construction
Cons
  • Requires an outlet