Features: With the functions of LED light indication, with voice prompt, alternator state check. LED display clearly shows the state of the alternator and battery, convenient and practical to use. Battery overload display, suitable for car and motorcycles, can effectively improve driving safety. The appearance is elegant, the operation is simple and easy to understand, and the voltage display is accurate. Suitable for 12V lead-acid batteries, hard top batteries, discharge batteries, maintenance-free batteries, heavy-duty insulated wire clips. Specification: Condition: 100% Brand New Item Type: Battery Tester Material: Plastic Color: As shown in picture Test Object: 12V Battery Voltage Range: 4V-20V Package List: 1 x Battery Tester Package List 1With the functions of LED light indication, with voice prompt, alternator state check 2LED display clearly shows the state of the alternator and battery, convenient and practical to use 3Battery overload display, suitable for car and motorcycles, can effectively improve driving safety 4The appearance is elegant, the operation is simple and easy to understand, and the voltage display is accurate 5Suitable for 12V lead-acid batteries, hard top batteries, discharge batteries, maintenance-free batteries, heavy-duty insulated wire clips