12V Digital Battery Tester, Voltmeter and Alternator Charging System Analyzer with LCD Display and LED Indicator, Black Rubber Paint

General Description The 12V digital battery tester is an essential tool for checking the condition of vehicle batteries and analyzing the alternator charging system. Easy to use, simply plug it in to begin testing. The device provides quick information on whether the battery needs to be jump-started or replaced, while also indicating the alternator's output status with different colored LEDs. Technical Specifications Test Range: 4~20V DC Four-Digit Backlit Digital Display Voltage Test Accuracy: Approximately 0.01 volts Status Indications: "LO" for voltage below 4 volts, "HI" for voltage above 20 volts Other Information Reverse Connection and Overvoltage Protection Black Rubber-Coated Body for a Better Grip Designed for Everyday and Convenient Use