Professional diagnosis of battery and alternator faults with the added facility to print the results. Test battery condition with as little as 1V of residual charge. No heat, no sparks and no misdiagnosis. Checks condition of alternator, no complicated connections or interpretation required. Analyse the charging system at rest and under load to determine condition of the alternator. Connect and follow the prompts on the 2-line/16 character LCD screen for straightforward answers. Incorporates simple voltmeter for voltage tests and additional system diagnostics. Rugged construction. Supplied in storage case with two rolls of printing paper and instruction manual.