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Burned $85 on a cheap toner probe kit from a supply house in Tulsa and it nearly cost me a whole panel job
I grabbed a no-name tone and probe set from a supply house in Tulsa for $85 to trace some buried zone wires in a 1970s ranch house, and the thing couldn't pick up a signal through a foot of drywall. It left me guessing on which pair went to the front door contact, so I almost wired the wrong zone and had to pull the whole panel back open. Anybody got a probe that actually holds a tone through old plaster walls without making me question my whole career?
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jasonallen11h ago
Ran into the same thing with old plaster, the trick for me was ditching the alligator clips and using a good set of test leads with a ground reference on the panel can. Also try turning the receiver gain way up and sweeping slow, like an inch a second, because those buried wires in plaster go dead in spots. Cheap kits just don't push enough signal for the lath and horsehair walls, so you're not crazy, the tool is.
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