Professional diagnosis of battery & alternator faults with the added facility to print the results. Test battery condition with as little as 1.5V of residual charge. No heat, no sparks & no misdiagnosis. Checks condition of alternator, no complicated connections or interpretation required. Analyse the charging system at rest & under load to determine condition of the alternator. Suitable for use on motorcycles, cars (including start/stop) & commercial vehicles. Connect & follow the prompts on the 2-line/16 character LCD screen for straightforward answers. Rugged construction. Supplied in carry-case with batteries, two rolls of printing paper & instruction manual.