[High Precision] This hand grip tester is equipped with a high-precision strain gauge sensor that can accurately measure grip strength up to 396 pounds, with a graduation value of 0.2 pounds/0.1 kilograms. [Bright Screen Display USB Charging] The newly upgraded bright screen function of the hand grip tester allows you to clearly see the readings of the hand grip tester in a dark environment. It can be charged with a USB cable, which is more environmentally friendly. Traditional AAA batteries (not included) can also be used. [Easy to Use] The LCD screen of the hand grip tester clearly displays all measurements on the same screen. The displayed measurements include user 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 device can store up to 19 user-definable data and can view its records at any time when needed; after the test, the hand grip tester can display how much the grip strength has increased or decreased this time. [Various Occasions] The digital hand dynamometer is ideal 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 Mode: USB Rechargeable/2xAAA Batteries (Not Included) Color: Black Material: Plastic Package Contents: 1 * Electronic Grip (Battery Not Included) 1 * USB Cable Only the above package contents, other products are not included. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3 cm.