BATTERY ALTERNATOR TESTER Performance Tool - W2989

Easy to use battery / alternator testerPlug in to the 12V cigarette lighter in your car, the LED indicators will show you the status of your battery and alternator3 LED indicators to show the battery condition: weak, normal or strong3 LED indicators to check the status of the alternator voltage: low, normal or highWorks on any 12 volt system, compact design for easy storageCompact size, a handy item for your glove box so you know right away if the problem you have is related to the battery or alternator