Schumacher - BT55U Compact 6V/12V/24V Battery and 12V Alternator Tester,Black
- COMPATIBILITY: Compatible with 12V alternators and 6V/12V/24V SLI and VRLA, AGM, and gel batteries.
- ACCURATE TESTING: Hand-held, lightweight tester checks the state of battery charge and charging system output.
- LCD SCREEN: LCD display interface with easy-to-read results.
- LED INDICATORS: 2 LED indicator lights and simple button controls for ease of use.
- SAFETY FEATURES: Over-voltage and reverse-polarity protection.