High Precision Grip Strength Tester - Equipped with a high-accuracy force sensor that measures grip strength precisely up to 396 pounds, with a resolution of 0.2 pounds / 0.1 kg. Bright Screen & USB Charging - The newly upgraded grip strength tester features a bright screen that allows clear readings in dark environments. It can be charged via USB cable, which is more eco-friendly. AAA batteries (not included) can also be used. Easy to Use - The LCD screen on the grip strength meter displays all measured values on the same screen. Displayed measurements include code, age, gender, grip value in pounds or kilograms, and grip status. The display of maximum grip value and weak, normal, or strong effect can be saved and recalled for compatible comparisons. Automatic Storage - The hand dynamometer's grip strength can be set to 19 predefined data points, and its readings can be viewed anytime when needed; After testing, the grip strength tester shows how much grip strength has increased or decreased this time. Multiple Uses - Digital hand dynamometer is suitable for compatible use in sports training, sports, family, and clinical applications. Grip testing is essential for sports such as climbing, boxing, and gymnastics, and it is also an important indicator of general health. Power: USB Charging / 2xAAA Battery (not included) Color: Black Material: Plastic Package Contents: 1 * Electronic Gripper (battery not included), 1 * USB Cable Only the above package contents are included; Other items are not included. Note: Brightness and different screens may cause the color of the product to slightly differ from the actual. Tolerance for measurement is +/- 1-3cm.