OTC SPX 3184 Professional Battery Charging Starting System Analyzer 1985 ensuring the set’s durability and A20624SPX ensuring the set’s durability and longevity Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score Tests batteries and starting charging systems faster than ever before BCS System Analyzer has an operating range of 50 2000 CCA's and is able to store data in memory or remotely print out the results using an infrared printer interface Also measures voltage and tests starting and charging systems at the push of a button Utilizes cost effective conductance test technology for accurate testing at a value price point and quick 1 second initial results