Review on KAIWEETS Dual Range AC Voltage Tester/Non-Contact Wire Breakpoint Finder - Live/Null Wire Electrical Tester with LCD Display (Orange) by Philip Berry

I am a qualified electrician. I've used this on everything from 480V (death is almost guaranteed if someone is electrocuted) to 12V AC systems. It works wonders! It's much more sensitive than my colleagues' inductive testers and seems to be more durable than many others. The only thing that broke after a year of use was the pocket clip which I used on my tool bag and not my regular bag. Thanks to the horn, I can often lean it against a wire, walk down the hall to the switch panel, and turn off the switches until I hear the chime, which saves time and having to travel back and forth. I love this little tester! A few tips: 1. Color isolates the voltage. So if your wire has a lot of paint on it, use the high sensitivity setting and compare it to a neutral or ground wire. You'll probably still pick up some induced voltage on the other wires, but if your hot wire is hot, THIS tester will show it.2. If I put my finger on one side of the probe tip and the wire on the other side, the signal will be attenuated. I recommend keeping the tester on the battery side rather than the tip for better sensitivity.