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Lowest price ever on Amazon – looks like Amazon is matching the price at Lowe’s.

https://www.lowes.com/pd/Fluke-LE…5000311917

Just plug in the tester into an outlet and make sure the beeper is switched on. Then, when you flip the corresponding circuit breaker for that outlet, the beeper will turn on or off, letting you know that you found the right breaker. These features packed into the compact yet rugged design of the ST120+ make this the perfect tester to take to every job."