Features: Ensures optimally battery performances with the analogue battery tester, designing to quickly and accurately assess the power level, and button cell batteries. Featuring a easy to read display, this lightweight tester requires no internal batteries for operation, making it a convenient tool for any toolkit. For electronics enthusiasts, repair technicians, home users, and professional engineers who need reliable battery testing capabilities. Perfect for use in daily household check, laboratory research, electronics repair shops, and outdoor activity where battery condition is important. With its ability to test multiple battery size in one unit, this battery checker ensures you never waste time on ineffective batteries again. Specifications: Component:ABS Size:Approx.11x6.1x4.2cm/4.33x2.4x1.5inch Color:Black Package Includes: 1pcs Battery Checker( battery not include) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.