Features: Automotive-battery tester, we-an check the overall for health-of the battery, including the cranking test, and run a complete system charging-test. The cranking test is-to test and analyze the starter motor to check if the starter motor is-working properly, and the-charging test is-to check the state of the-charging system to avoid damaging the battery. It is-much more convenient than driving a few-miles to a nearby auto repair store. for car, motorcycles, trucks, ATVs, SUVs, boats, yachts, mowers, and even golf carts. Plug-and-Play, and it provides Accuracy testing reports within seconds, greatly improved the testing speed compared to other battery testers. It also has a-polarity reversal-for protection-function. The clip reversal- will not damage the tester, and will not have any adverse effects on the car and the battery. Can directly test the loss of power battery, no need to be fully charged- first and-tested. The product adopts ergonomic design, simple appearance, small design, excellent hand feeling, easy to use and beautifully packaged. Specifications: Material:Plastic Size:As Picture Shown Style: Basic Edition/Upgrade-Edition After replaced the storage battery, release the red clip of the tool, if the tool is still beeps, it-means you have replaced the battery successfully, if no voice, indicating fuse-burned. Package Includes: 1x Battery Tester note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.