Feature: 1. Applicable Batteries: Our battery tester can test lots of batteries, including ordinary submerged, EFB, AGM flat panel batteries, AGM winding batteries, gel batteries, wet batteries, etc.2. Buzzer Alarm: Equipped with a built in buzzer reminder, when there is a problem with the battery being detected, it can provide timely and effective feedback. 3. Self : This battery detector has a protective function, even if the positive and negative polarities are connected incorrectly, the device can start normally, and neither the device nor the battery will be damaged. 4. Wide Application: This battery tester can be used in many scenarios, like car factories, garages, car battery manufacturers, car battery dealers, educational institutions, DIY enthusiasts, etc. 5. ABS Material: Made from premium ABS material, this battery tester is not likely to deform and also has excellent durability for long working hours. Specification: Item Type: Battery Tester Package List: 1 x Battery Tester 1 x Manual 1 x Storage Bag |