[High Accuracy] This grip strength tester is equipped with a high-precision strain gauge, which can accurately measure grip strength up to 180 kg, with an accuracy of 0.1 kg. [Bright Screen Display & 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. 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 measurements include code, age, gender, grip value in pounds or kilograms, and grip status. The maximum grip value and weak, normal, or strong power level can be saved and retrieved for comparison. [Automatic Storage] The hand dynamometer can store up to 19 definable data, and their records can be viewed at any time if needed; After the test, the grip strength tester can show how much the grip strength has increased or decreased this time. [Various Occasions] The digital hand dynamometer is suitable for sports training, sports, family, and clinical use. Grip strength testing is essential for sports such as rock 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 content, others 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 measurement allowed error is +/- 1-3 cm.