The Midtronics EXP-800 Battery and Electrical System Diagnostic Analyzer combines direct temperature measurement with deep scan technology to improve accuracy and decisiveness. Advanced preventative maintenance algorithms help to identify batteries as they approach end-of-life. The Digital Signal Processing (DSP) creates a digitized picture of the measured alternator output voltage to analyze the amplitude level and frequency of the diode ripple pattern. The result is improved accuracy and the ability to identify open or shorted diodes or open phase conditions. Other features include: Enhanced counters to report testing data, including lifetime use, results dispersion, system test dispersion, and number of tests by user and PDI test function for testing new batteries prior to delivery.