Description [High Accuracy] This compression force gauge is equipped with a high-precision strain gauge that can accurately measure compression force up to 396 lbs, and the division accuracy is 0.2 lbs / 0.1 kg. [Bright USB Charging] The new upgraded bright display function of the compression force gauge allows you to clearly see the compression force gauge readings in dark environments. 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 large LCD screen clearly displays all measurements on the same screen. The displayed measurements include user code, age, gender, compression value in pounds or kilograms, and compression mode. The maximum compression value and weak, normal, or strong power level can be saved and easily retrieved for comparison. [Automatic Recording] The hand dynamometer's grip strength meter can store up to 19 user-defined data, and their data can be viewed at any time if needed. After the test, the grip strength meter can show how much the grip strength has increased or decreased this time. [Various Occasions] The digital hand dynamometer is very suitable for sports training, athletics, family, and clinical use. Grip strength testing is important in sports such as mountaineering, wrestling, and, and is also an important indicator of overall health. Power supply: USB charging/2xAAA battery (not included) Color: black Material: plastic Package contents: 1 * Electronic gripper (battery not included) 1 * USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3 cm.