[High Precision] This grip strength tester is equipped with a high-precision strain gauge sensor, which can accurately measure grip strength up to 396 pounds with an accuracy of 0.2 pounds/0.1 kilograms. [Bright Screen Display and USB Charging] The newly upgraded bright screen function of the grip strength tester allows you to clearly see the grip strength tester readings in a dark environment. It can be charged with a USB cable, which is more environmentally friendly. AAA batteries (not included) can also be used. [Easy to Use] The LCD screen of the hand dynamometer clearly displays all measurements on the same screen. The displayed measurements include code, age, gender, grip strength value in pounds or kilograms, and grip strength status. The maximum grip strength value display and weak, normal or strong power levels can be saved and called for comparison. [Automatic Storage] The handheld dynamometer grip strength device can define up to 19 data, and its records can be viewed at any time when needed; after the test, the grip strength tester can display how much the grip strength has increased or decreased this time. [Various Occasions] The digital hand dynamometer is suitable for sports training, sports, home and clinical use. Grip strength test is necessary for sports such as rock climbing, wrestling and gymnastics, and is also an important indicator of overall health. Power supply: USB charging/2xAAA batteries (not included) Color: Black Material: Plastic Package Contents: 1 * Electronic Grip (Battery Not Included) 1 * USB Cable Only the above package contents, others are not included. Note: Light and different monitors may cause the color of the item to be slightly different from the actual color. The allowed measurement is +/- 1-3 cm.