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Auto Meter's SB-300 is a handheld battery tester that is a great addition to any technician's toolbox! This tester will help you rapidly and accurately diagnose battery issues with unmatched speed and accuracy with our easy to use testing protocol. Featuring AutoMeter's patented and award winning Digital Pulse Load (DPL) technology™, this tester delivers a true on-board 40 amp load for unmatched accuracy. Capable of performing a full battery test in less than 82 seconds, the SB-300 represents the ultimate in value, convenience, and ease of use.