[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 resolution of 0.2 lbs / 0.1 kg. [Bright Screen Display & USB Charging] The upgraded bright screen allows clear visibility of readings in low-light environments. It can be recharged via USB cable. AAA batteries (not included) may also be used. [Easy To Use] The LCD screen displays all measured values on one screen, including code, age, gender, grip value in pounds or kilograms, and grip status. The maximum grip value, along with weak, normal, or strong power level indicators, can be saved and recalled for comparison. [Automatic Storage] The hand dynamometer can store up to 19 user-defined data entries, which can be viewed at any time. After each test, it displays the change in grip strength compared to previous results. [Various Occasions] This digital hand dynamometer is suitable for sports training, fitness, home use, and clinical applications. Grip testing is commonly used in activities such as rock climbing, wrestling, and gymnastics, and is also an indicator of overall health. Power supply: USB charging or 2x AAA batteries (not included) Color: Black Material: Plastic Package Contents: 1 x Electronic Grip Strength Tester (batteries not included) 1 x USB cable Note: Actual product color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.