Robust and simple-to-use design offers a full in-vehicle diagnosis of the vehicle battery, starter motor and alternator in seconds. Professional tool supports all 12V batteries including standard Lead-Acid, VRLA, GEL plus AGM and EFB found on all Start/Stop vehicles. The in-vehicle test mode allows diagnosis of battery health, state of charge, internal resistance, cranking voltage and a comprehensive charging system voltage at rest and under load. No heat, no sparks and no misdiagnosis. Equipped with reverse polarity protection and a battery temperature compensation feature. A 4-Line/16 character LCD display gives easy to follow prompts and accurate results. Fitted with a heavy-duty rubber protection cover.