Accuracy 3% of full-scale Universal splines Rugged construction designed for heavy field use Overhead brass hook contact probes Large 3"(7.6 cm) meter face with a Lex, and protective cover is specially designed for easy reading and increased accuracy. Multiple scales assist the user in avoiding misreads. Strain relief fittings at the ends of cords reduce cable damage at the point of highest stress. High voltage resistors are encapsulated in epoxy in all resistor sticks, limiting maximum current to approximately one million amp at full rated voltage. Virtually maintenance-free - no batteries required. Measures DC through 1000HzAC RMS.