Compact and portable design This watch battery tester is designed for easy portability and onthego use. Its compact size of 1 x 1.6 inches lets you carry it in a bag or pocket without effort. Sensitive detection Equipped with a responsive indicator light and a buzzing alert, this tester provides quick feedback when testing quartz watches, helping you identify battery issues without missing details. Quick battery voltage readings The voltage indicator promptly shows battery levels, enabling fast assessment of button cell batteries and saving time during testing. Material construction Made from ABS material, this device offers reliable performance and resistance to temperature changes in a variety of conditions. Use scenarios or service bench: Quickly verify battery status during watch repairs to determine whether a replacement is needed. Mobile or onsite service: Take the tester to customer locations for fast, onthespot battery checks on quartz watches. Home or use: Test spare button cell batteries before installation to ensure proper function and extend watch life.