Description: Quick Detection: The BT189 Battery Tester with high definition LCD digital display allows for quick and accurate testing of various types of batteries without the need for a power supply. Small in size, it is for on-the-go use Portable : The BT189 Battery Tester features a compact and -small size, making it convenient to carry and use anywhere. Suitable for testing button cell and universal batteries, it is a must-have diagnostic tool for measuring capacitance Efficient Testing: The BT189 Battery Tester is suitable for various types of batteries, including AA and AAA button cell batteries. With no power supply required, it can be easily tested as needed, providing a reliable power indicator for household batteries High Definition Display: The BT189 Battery Tester is equipped with a high definition LCD display, ensuring clear and accurate readings for efficient battery testing. Its universal makes it compatible with a wide range of battery types Convenient Tool: The BT189 Battery Tester is a portable and user-friendly device that allows for quick detection of battery capacity. Its small size and easy-to-use button make it a practical and convenient choice for all your battery testing needs Specification: Color: multi-color. Material: ABS. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1 * LCD display battery tester