Features: The product can effectively analyze and read important car data such as voltages, internal resistance, cold crank amperage and AH capacity, battery health and state of charge, providing accurate result, calculating the cold cranking capability and aging of the battery, and achieving more Faster, more precise car repairs. Prompt for poor contact, the monitor will react when the test clip does not clamps the positive and negative of the battery. Reversepolarity protections, when thepolarity of the input power is reversed, it can protect the switching power from being damage. The test line is adopt plastic materials, which have good elasticity, not easy to break, wear resistant. The clip adopt pure coppermaterial, with a large opening range, strong occlusal forcings and more accurate measurement. Nonslip design, easy to operate with one hand. Integrated cable machine design, the interfaces is stable, to prevent falling offs and loss. Physical buttons, fastresponse and good feel. Wide range of applications, can test 6V/12V/24V batteries, suitable for motorbike, car, lawn mowers, golf cart, ATVs, trucks, marine batteries, and more. Specifications: Material:ABS Working Humidity: Relative Humidity < 80% Screen size: 1.8inch Test Range: 6V/12V/24V Connection Method: Positive and Negative Clip Working Voltage: 4.9V~32V Operating Temperature: -4F~122F (-20C~50C) Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car Battery Tester