... inspection can be tested by AT520 series. AT520L Battery Tester SPECIFICATIONSParametersAC resistance, DC voltage, ΘAccuracyResistance:0.5% ... group record, NG-LO, GD-IN, NG-HI display and output. beep is adjustableTriggerInternal, manual, external (optional ... test wire,four-color vacuum fluorescent screen VFD display,keypad lock and data hold functionGENERAL FEATURESPower SupplyVoltage: ...