Simple to use battery and alternator analyser. Checks both the battery and alternator status. Fitted with a convenient magnetic strip on the reverse of the tester, allowing the user to attach the tester appropriately when testing the battery/alternator. Compatible with all 12V DC systems. Supplied with a 900mm 'Red Positive' insulated test lead fitted with a test probe and a 900mm 'Black Negative' insulated test lead fitted with a crocodile test clip. Warning: For testing DC circuits on vehicles within the voltage range only. Not suitable for testing mains supply AC circuits.