Voltage Tester Non Contact Voltage Detector Pen with Dual Range AC 12-1000V/48-1000V,Live Wire Tester with LCD Display Buzzer Alarm and Flashlight,Wire Breakpoint Finder

Works fine for my traveling tool box

Everything okay.

I wish it was smaller but it works well and the built in flashlight is a real plus.

I have gotten a lot of usage out of the voltage detector that came with my old multimeter, little did I know it could have been so much better. This one isn't that expensive but it is leaps and bounds better than old one that just had a squeeze "pen clip" to activate. Hold the power down and it turns on with a screen that shows you what setting it is on and if/how much current it is detecting. The high sensitivity mode even makes it easy to trace the current down a charging cable to check for breaks (note it doesn't work if it is plugged into a DC battery pack, only if the charger is plugged into a household AC plug). There's a light to see into dark areas, and the screen lights up red when it detects a live wire. No more wondering if it is on or has batteries, no more having to get just right to detect a current (especially in HS mode), and so much easier to use. Overall this is a must have for any homeowner, handyman, or hobbyist that wants to spare themselves the shocking discovery that the breaker box was mislabeled.

Convenient tool to have for trying to ensure a circuit is 'dead' before doing any work on it. Beats breaking out the multimeter where you have to fumble with the 2 leads to test the circuit. Just make sure to test it on a live circuit to ensure it is working prior to touching the circuit you are going to work on. Comes with 2 AAA batteries so it is ready to use. The bonus flashlight helped me out the other day when my light switch short circuited in the evening, and I had to work in the dark. It lit up the switch box just enough so I could see the wires were unpowered before I replaced the switch. Good for finding an open in a wire just by tracing the wire from source to end. The probe tip for sticking in a outlet opening is slightly tight so just be careful not to snap it off when testing for the hot wire. I only tested it out on both 120 and 240 V lines, so I don't know if its max range is accurate.

This non-contact AC voltage detector tester pen operates very well. The two included AAA batteries are easy to put in and the unit turns on with a one second push of the power button. The flashlight button and flashlight work well and are handy in dark spots. I tested on a number of circuits, and it performed it job appropriately. Testing it around the office, the tester would not alert until I turned on the high sensitivity button (12V to 1000V) as expected. The normal sensitivity is 48V to 1000V. I am quite happy to retire my old non-contact voltage detector, where the power button was being finicky, with this new detector.

I always turn the circuit breaker off when I replace switches and outlets, etc...But it's always good to have a way to make sure the wires and outlet aren't live Works great around the house and the flashlight is a bonus.

While I haven't used other AC voltage detectors to have a good basis for comparison, this one seems pretty bad. It does work, technically. If I press the detector directly against an insulated wire that I know has 120V AC running through it, then the beeper goes off… usually. Sometimes even then I have to futz with the angle to get it to register the signal. Turning on "high sensitivity" mode does help a bit, but only a bit.Build-quality wise the tool feels a little cheap with its plastic housing and belt clip, though I suppose when working with high voltages it's probably good to use a non-conductive material so that's forgivable. The buttons feel really mushy and hard to press. The built-in flashlight is a nice idea, but it's so dim that in practice it feels almost pointless.All that said… it's $12. For that price it's hard to expect too much, and it does work. I give it maybe a 4/5 for now.