The Cornwell Tools Digital Battery and Electrical System Analyzer with Printer, No. ESC726, performs a complete starting and charging system analysis and diagnosis of battery condition. The battery condition test covers 6 and 12V batteries and the starting/charging test covers 12 and 24V systems. The analyzer is easy to use with step-by-step prompts on the LCD display. The built-in printer provides hard copy test results for customers, managers and record-keeping.