A simple and easy to use 12V DC battery and alternator tester. The LED display indicates the condition and output voltage, giving three alternator readings: Strong (14V), Normal (13.5V), Low (13V) and three battery readings: Good (12.5V), Fair (12V), Poor (10V), to quickly identify if either are at fault.
Simple to use test battery and alternator.
LED gives immediate identification of voltage output.
Magnetic back allows the tester to be secured to the vehicle during use for hands-free operation.
