Associated Equipment 6031 6/12V 125 Amp Hand Held Analog Alternator/Battery Tester

• Alternator battery tester
• Tests for defective alternator diodes including GM trio test
• Tests for excess starter current and alternator/regulator output voltage
• Recessed meter helps protect this hand-held tester from damage and ensures more accurate and reliable outputs
• Made in the USA

I've found the ASO6031 to be an excellent well made product. It's analog meter is straight forward making it easy to see the testing at hand. It's simple, reliable and easy to use.

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