[High Accuracy] This grip strength tester is equipped with a high-precision strain sensor, which can measure grip strength accurately up to 396 pounds, with a graduation of 0.2 pounds / 0.1 kg. [Bright Screen Display and USB Charging] The newly upgraded bright screen function of the grip strength tester allows you to clearly see the readings of the grip strength 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 grip strength tester clearly displays all measured values on the same screen. The displayed measurement values include user code, age, gender, grip value in pounds or kilograms, and grip status. The maximum grip value display and the weak, normal or strong power level can be saved and easily recalled for comparison. [Automatic storage] The hand dynamometer grip strength device can store up to 19 user-defined data, and their records can be viewed at any time when needed; After the test, the grip strength tester can show how much the grip strength has increased or decreased this time. [Multiple occasions] The digital hand dynamometer is very suitable for sports training, sports, family and clinical use. Grip testing is necessary for sports such as climbing, wrestling and gymnastics, and it is also an important indicator of overall health. Power supply mode: USB charging/2xAAA battery (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 displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.