Digital clamp on ammeter, volt meter and ohmmeter. Uses 9 volt transister battery ( Not Included ). Display: 3 1/2 digit LCD. Resistance rsnge: 2K ohms. AC voltage ranges: 200V, 750V. AC current ranges: 20A, 200A, 1000A. Current protection: Up to 1200A. Maximum jaw opening: 2 . Model # 93-8010.