Triplett CBF200 3-in-1 Circuit Breaker Finder, GFCI Receptacle Tester, and Non-Contact AC Voltage Detector,Black

If it worked it might be good. I put in the battery nothing! Piece of junk! I guess you get what you paid for.

Easy to use.

Able to narrow down and find breaker in 1200 sqft house. Klein blue tester did not work. Adjustable sensitivity worked as designed and holding down 2nd button to narrow which breaker, I am confident in. Well see how it works when I have time to test more circuits.