I also have had proles with the cap on the end of the greenlee testers. The fluke that is shown is the one I like. No problems with it at all. However they make another one that I cant stand. It has a button on it to turn it off and on and to have a beep or no beep. Stay away from that thing. I dont really care that much about money but I found that thing to be a waste of 25 bucks. Just my 1 cent worth though. Steve
