Review on Neoteck Voltage Tester/Non Contact Voltage Tester 12-1000V/48-1000V Adjustable Sensitivity AC Voltage Detector Tester Pen Live/Null Wire Tester With LCD Display Buzzer Alarm Wire Breakpoint Finder by Cedric Ford

I had a GB circuit tester for years before it finally crapped out. I got this Neoteck tester because it was cheap and it seemed to be the same kind of device.Pros: (1) includes little flashlight, that's convenient for working in tight spots. (2) It uses AAA batteries instead of button cells. (3) Easy to use.Cons: (1) It's not as sensitive as my GB tester was -- you can put the little plastic tip right into the neutral slot of a live 120-V receptacle and this unit will NOT beep. I found that rather weird. If the tip is OUTSIDE the receptacle or pushed into the hot slot, then it will beep. If you probe it around a switch plate it will not beep. On the other hand it will find wires through drywall so it's probably good enough for most uses. You just have to know its peculiarities. (2) kind of bulky compared to the GB but that's probably because it's designed to take AAA batteries.The user's manual contains funny Chinese-isms and other errors in English spelling and usage. "Cell Replaceme" for battery replacement and "The electric torque lights up when the electric torque switch (3) is pressed." (The word "torch" was intended there instead of "torque").But you're not going to read the manual anyway.