I was wondering if anybody uses them & if they work; (saw one once at a car show years ago; wondering if its just a gimmick I usually use my DVOM; Vantage or Powerprobe 3; but I think they would come in handy for testing simple circuits.
i have one from Mac tools i bought years ago. i liked it at first but it grounds through your body and you have to touch something with your other had and have a good ground then but i gave up on it cus you never know if you are grounded good or you just don't have power so i went back to a reg test light so i know i can put it to a good ground and don't have any trouble.