Stop in for a cup of coffee

zkx14 said

So, it will tell good wire lenth to pinpoint where it is open? how accurate. I mean the entire run isn't that long...

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Depends on the unit and the scale can be inches or feet, pretty cool and accurate you can see splices, connections, shorts etc and the distance away from the tester. Load test will tell us fast if there is a issue. Just not where.