It plugs in in place of a fuse and will tell you how much current that circuit is drawing. Handy for finding leaks. Can be done with a regular ammeter but it is much easier, especially with the location of our fuse box.
"Capitalization is the difference between helping your Uncle Jack off a horse, and helping your uncle jack off a horse." "'she' also likes to swap since I think I am going to need to give her to woody again." - Dvlhntr "full alphabetic boost mode" - ChristopherTheOne " Purrs like a sexually satisfied black panther." - BigTDogg "Two oil eating, angry, spinning triangles of death." - turtleboy on rotary engines