PITTSBURGH AUTOMOTIVE 12V Alternator/Battery Tester – Item 63592 / 46972 / 69018

This alternator/battery tester quickly identifies the source of automotive charging problems, eliminating guesswork and saving time. Determine at a glance whether a weak battery is caused by a faulty alternator or a failing battery. This compact and easy-to-use device includes three alternator readings (strong, normal, low) and three battery readings (good, fair, poor).