[High Accuracy] This grip strength tester is equipped with a high-precision strain gauge sensor, capable of accurately measuring grip strength up to 396 pounds, with a resolution of 0.2 lbs / 0.1 kg. [Bright Screen Display & USB Charging] The newly upgraded bright screen function allows clear visibility of readings in low-light environments. It can be recharged via USB cable, offering an environmentally friendly power option. The device is also compatible with 2x AAA batteries (not included). [Easy To Use] The large LCD screen clearly displays all measured values simultaneously, including user code, age, gender, grip value in pounds or kilograms, and grip status. The maximum grip value and power level indicators (weak, normal, or strong) can be saved and easily recalled for comparison. [Automatic Storage] The hand dynamometer can store up to 19 user-defined data sets, which can be reviewed at any time. After testing, the device displays changes in grip strength compared to previous measurements. [Various Occasions] This digital hand dynamometer is suitable for sports training, fitness, home use, and clinical applications. Grip strength testing is beneficial for activities such as rock climbing, wrestling, and gymnastics, and serves as an important indicator of overall health. Power supply: USB charging or 2xAAA battery (not included) Color: Black Material: Plastic Package Contents: 1 x Electronic Grip Tester (battery not included), 1 x USB cable Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.