Shaped like a gun for ease in handling, a self-contained meter speeds up testing of electric bonds intended to prevent interference with radio reception and transmission as well as injuries from static sparks. The unit is simple to read and the operator does not require technical knowledge. Electric bonds, widely used in the manufacture of planes, tanks and other motorized military equipment, are connections usually welded in place to insure constant electrical contact between the body and objects attached to it by mechanical joints, such as doors. Unless these connections are held within the safety limit, electrical resistance may be set up which sometimes impairs radio efficiency. Used periodically, the test discloses loose or corroded joints before serious trouble develops.