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 division of 0.2 pounds or 0.1 kilograms. The newly upgraded bright screen function of the grip strength tester allows you to clearly see the reading of the grip strength tester even in dark environments. It can be charged using a USB cable, which is more environmentally friendly. Traditional AAA batteries (not included in the supply scope) can also be used. [Easy to use] The LCD screen of the grip force meter clearly displays all measured values on the same screen. The displayed measurement values include user code, age, gender, grip strength 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 retrieved for comparison. [ Automatic Storage ] The grip strength meter can store up to 19 user-defined data, and its records can be viewed at any time when needed After the test, the grip strength tester can display how much grip strength has increased or decreased this time. Digital hand force meters are very suitable for sports training, sports, home, and clinical use in various occasions. Grip strength testing is necessary for sports such as rock climbing, wrestling, and gymnastics, and is also an important indicator of overall health status. Power mode: USB charging or 2xAAA battery (not included) Color: Black Material: Plastic Packaging content: 1 x Electronic handle (not including battery) 1 x USB cable only includes the above packaging content and does not include other products. Attention: Light and different monitors may cause slight color differences between the product in the picture and the actual product. The allowable measurement error is1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.