K & L Supply Company Testmate Mini Battery And Charging System Tester/Analyzer

Features

• This compact, easy to use tester is ideal for quick diagnosis without having to remove wiring
• Simply connect the included harness to the battery in question and begin testing
• With the ignition off, battery voltage is displayed
• When the starter is engaged, cranking voltage is displayed
• With the engine running, charging voltage at various RPMs can be observed, indicating potential regulator and alternator trouble
• Easier to read than a multimeter, the Testmate is small enough to use anywhere with no need to switch between different scales