Abrasives & Brushes -Charging System Analyzer Highlights Generic Brand Charging System Analyzer Description: Easy-to-read, pointer display moves through a calibrated, color-coded scale to quickly identify green, yellow and red. Suitble for multiple battery sizes in one unit, work with AA/AAA/1.5V/9V battery or button cell. Does not require an internal battery. Easy to use, move the little arm up and down to accommodate the battery. Material: Plastic Specification: Color: As pictures shown Size: About 110x59x25mm/4.33x2.32x0.98inch Instructions: 9V battery directly connected to the tester side of the two test holes, pay attention to the positive and negative For other batteries, please open the test arm at the top of the tester with your hands and insert the battery into it. Note the positive and negative electrodes. Package includes: 1 piece of universal battery tester 1 piece of user instruction Note: Please allow 1-3mm error due to hand test Please check the measurement of the size and picture carefully before making payment Due to the difference between different monitors, the picture may not reflect the actual color of the item. please understand, thank you