Rods that are listed by UL are marked within the top 12 inches. But more than one person has told me that "a guy from the power company came along and hooked something up to the rod & told me that I cut off (insert number)" and they were all amazed at how close the number was to wehat they did cut off the rod.

So, does such an electrical tester exist? I usually look for saw marks on the end of the rod, but some people are actually smart enough to hammer these off. Be nice to have this tester if it exists & doesn't cost too much.

Few things are harder to put up with than the annoyance of a good example.