Never used product, packaging damaged during transport. Unopened product, repacked in our warehouses, in perfect working condition, warranty available. Accurate Measurement: The digital hand dynamometer is equipped with a high-precision strain gauge. With a resolution of 0.2 lb/0.1 kg, the professional dynamometer accurately tracks force and has a maximum load capacity of 180 kg. Clear LCD Display: On the large LCD display, all measurements are clearly shown on the same screen. The displayed measurements include gender, age, grip strength, grip fluctuation status, difference from the last comparison, and grip strength level. Robust and Durable: Made from high-quality materials, this hand dynamometer is particularly durable and ideal for anyone who wants to monitor and improve their grip strength through targeted training. The rechargeable grip strength trainer has a practical USB-C charging port, which means 3A batteries are no longer required. Versatile and Comprehensive Data Storage: This device records grip strength measurements for up to 19 users, including age and gender. You can review the records at any time and automatically display incremental changes since the last test for easy comparison. Package includes: 1 x grip tester, 1 x Type-C charging cable, 1 x user manual. Warning: Use a 5V 1A charger when charging. Fast charging adapters for smartphones can trigger the device's overvoltage protection. It is recommended to power the device preferably via the charger as the operating time is longer per charge. Do not use AAA batteries during charging.