DC/AC High Current Probe - 1000 Amp Unit is designed for use with digital multimeters, lab scopes or graphing meters. . With 1000 Amp capability, this instrument can be used to test starting and charging systems. . It can even be used to test relative compression when used with your lab scope or graphing meter.. Measures 0 to 1000 Amps DC or AC. Use with Digital Multimeters, Scopes and Charging Systems. Great tool for testing starting & charging systems. Jaw opening is 2.125 inches. Low Battery Indication Lamp. Zero Adjust Knob. Zippered Carrying Case Included 698