Unlike competitor models AutoMeter testers only require a single technician to run a full electrical system test due to our on-board 40 amp True Load cell.. This eliminates the need to apply inconsistent loads such as headlights fans etc.. which makes our products easier to use and more accurate.. Kit includes AutoMeter PR-20 add-on thermal paper printer specifically designed to enhance AutoMeter Electrical System Testers by providing instant hard copy results and credibility.. Tests flooded deep cycle and AGM batteries with CCA range of 100-1600 - also detects discharged batteries bad cells and has built in reverse polarity protection.. This tester applies a true 40 amp load to the battery in order to simulate real world operating conditions consistent with BCI (Battery Council International) testing standards.. Battery Test Results Include: Measured True Cca Voltage And Percent Of Charge And The Batterys State Of Health (Good Near End Of Life Or Bad).. Automatically stores the last 100 tests in memory.. 30" - 16 gauge leads with professional grade clamps that are easily field serviceable.. Customer communication with optional PR-12 (external printer) PR-20 (bolt-on printer) or AC-12 (PC cable).. English and Spanish language menus and test results.. Perfect tool box tester! Rugged engineered composite housing with protective rubber boot for years of service.