[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. [Screen Display & USB Charging] The upgraded display allows clear visibility of readings even in low-light environments. It is rechargeable via USB cable. Traditional AAA batteries (not included) can also be used. [Easy To Use] The LCD screen displays all measured values on one screen, including user code, age, gender, grip value in pounds or kilograms, and grip status. The maximum grip value and classification (weak, normal, or strong) are saved and can be easily recalled for comparison. [Automatic Storage] The device can store up to 19 user-defined records, which can be viewed at any time. After testing, 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 relevant for activities such as rock climbing, wrestling, and gymnastics, and is also an indicator of overall health. Power Supply: USB charging or 2 x AAA batteries (not included) Color: Black Material: Plastic Package Contents: 1 x Electronic Grip Tester (batteries not included), 1 x USB cable Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.