Performance Tool W2989 12V Cigarette Lighter Car Battery Tester and Alternator Tester

.Easy to use battery / alternator tester. Plug in to the 12V cigarette lighter in your car, the LED indicators will show you the status of your battery and alternator. 3 LED indicators to show the battery condition: weak, normal or strong. 3 LED indicators to check the status of the alternator voltage: low, normal or high. Works on any 12 volt system, compact design for easy storage. Compact 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.
.ELECTRIC_CIRCUIT_TESTING_DEVICE
.Model Number: W2989
.Height: 0.2 inches Length: 6.6 inches Width: 3.9 inches
.Item_Weight 0.1 pounds