Button Cell Battery Tester For 1.5V 3V Watch Battery Button Cells Power Meter Features: 1. Simply insert the button battery to quickly display the battery health status, helping you avoid unnecessary charging that could damage the battery. 2. This easy-to-use analyzer clearly displays the battery health status, accurately indicating whether the battery is in a low voltage, weak, or good condition. 3. This button battery tester can test 1.5V and 3V batteries, providing a simple and effective solution for assessing battery performance. 4. This battery analyzer is portable and easy to use, allowing you to test batteries anytime, anywhere. 5. For watchmakers and watch repair technicians, this watch battery tester is an ideal tool to help determine whether the battery is functioning normally or needs replacement. Package Includes: 1*Button Cell Battery Tester Notes: 1. Due to manual measurement, please allow for a 1-3mm error. Please ensure you are comfortable with this before placing your order. 2. Please allow for a 1-3g weight error. Please ensure you are comfortable with this before placing your order. 3. Due to differences in lighting and display screens, the images may not accurately reflect the actual color of the product. Please confirm the details before placing your order. Thank you!