Question about those cheap fiber optic testers on Amazon

Been using the same Fluke meter for 7 years and figured those $40 testers were garbage but grabbed one for a backup. Three jobs in and the thing gave me a false reading on a 200 foot run that had me chasing a ghost for two hours. Anyone else had one of these cheap testers burn them on a job?

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eric_wright772h ago

That's the real problem with these cheap testers, they'll pass a link that's marginal or even failed on a real meter which just wastes your time. The false positives are way more dangerous than a false fail since you think everything is good and leave the job. You end up spending more money on labor chasing issues than you would have just buying a quality tool from the start.