• American-style drop tester.• Polarity protected cables make it impossible to damage unit by incorrect connection.• Load applied by internal switchgear - no sparking!• Suitable for 6 and 12V batteries.• Applies load across cells and measures output on meter.• Accurate indication of battery voltage and faulty or short circuited cell.American-style drop tester. Polarity protected cables - impossible to damage unit by incorrect connection. Load applied by internal switchgear - no sparking! Suitable for 6 and 12V batteries. Applies load across cells and measures output on meter. Accurate indication of battery voltage and faulty or short circuited cell.• American-style drop tester. • Polarity protected cables - impossible to damage unit by incorrect connection. • Load applied by internal switchgear - no sparking! • Suitable for 6 and 12V batteries. • Applies load across cells and measures output on meter. • Accurate indication of battery voltage and faulty or short circuited cell. • Model