Features: Battery Tester can accurately display the battery capacity, helping to know the remaining power and avoid the embarrassing situation of power shortage. With precisions battery capacity detection function, can be apply to various type of batteries. Its clean and easy to use make easy to read battery capacity information. Suitable for wide of user groups, including ordinary consumers, electronics enthusiasts, engineers, etc. Whether for home use or professional field, can meet the needs of battery capacity check. Widely used in various scenario, such as home appliances, mobile device, photography equipment, toy, etc. Detect the battery capacity, ensure the normal operation of the device and replacement of the battery. Specifications: Material: ABS Test Range: 1.2V-4.8V/9V Batteries Size: About. 52.6x53.9x23.4mm/2.07x2.12x0.92in Package Includes: 1x Digital Battery Tester note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the items actual color.