[High accuracy] This grip strength tester is equipped with a high precision strain gauge, which can accurately measure grip strength up to 396 pounds, with a division of 0.2 lbs / 0.1 kg. [Light display and USB charging] The newly upgraded bright screen function of the grip strength tester allows you to clearly see the readings from 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 meter clearly shows all measured values on the same screen. Metrics displayed include user code, age, gender, grip value in pounds or kilograms, and grip status. The display of the maximum grip value and the weak, normal or strong power can be saved and easily recalled for comparison. [Automatic storage] The grip strength of the hand dynamometer can store up to 19 user-definable 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. [Various Occasions]Digital hand dynamometer is very suitable for sports training, sports, family and clinical use. Grip testing is necessary for sports such as rock climbing, wrestling and gymnastics, and it is also an important indicator of general health. Power : 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 screens may cause the color of the item in the picture a little different from the real thing. The permissible measurement error is +/- 1-3 cm.