[High Accuracy] This grip strength tester is equipped with a high-precision strain gauge sensor, which can accurately measure grip strength up to 396 pounds, with a precision of 0.2 lbs / 0.1 kg. [Bright Screen Display & USB Charging] The upgraded bright screen function allows you to clearly see the readings in a dark environment. It can be recharged with a USB cable, which is more environmentally friendly. AAA batteries (not included) can also be used. [Easy To Use] The LCD screen clearly displays all measured values on the same screen. The displayed measurement values include code, age, g , 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 recalled for comparison. [Automatic Storage] The hand dynamometer can store up to 19 user-defined data sets, and their records can be viewed at any time when needed. After the test, the grip strength tester can display how much grip strength has been increased or decreased during this measurement. [Various Occasions] The digital hand dynamometer is suitable for sports training, fitness, family, and clinical use. Grip testing is beneficial 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 x Electronic Grip (battery not included) 1 x USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item to vary slightly from the real thing. The measurement allowed error is +/- 1-3 cm.