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

Easy Operation - Connect and Go. It provides a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status. Various Colored LEDs indicate the battery or the alternator status.
Safety Ensured - Reverse-hookup and Over-voltage protection, making it safe and simple to use.
High Accuracy - With a Four-character lighted digital display, the voltage testing accuracy will be close to 0.01volt.
Testing Range - 4~20V DC. If the voltage is under 4volts, the screen will display - "LO"; If the voltage is above 20volts, the screen will display - "HI"
Rubber Paint Body to achieve the original quality - Black Rubber Paint on the body surface to achieve the best feeling. As the inventor and the manufacturer of the tester, we are keen on the details to ensure the brand quality and the good custome buying experience.
Daily Use - It's an economic and practical tool for daily inspection of the battery and charging system.