Easy to Use：Simply hold the grip strength tester in your hand and squeeze as hard as you can，the tester will measure your grip strength and display the results on the LCD screen. Digital Display：The grip strength tester uses high-precision sensors，large LED digital display，automatic memory storage and automatic screen to provide clear and easy-to-read grip strength readings. Wide Range：The grip strength meter has a measuring range of 0 to 180kg（0 to 396 lbs）, suitable for sports training, rehabilitation, physiotherapy and home use, suitable for a variety of users, from beginners to professional athletes. ADJUSTABLE：The handheld dynamometer features an adjustable handle that allows you to customize the handle size to suit your hand size and comfort. USB/Battery：The handheld dynamometer can be powered by USB or 2 AAA batteries (not included), giving you the flexibility to use it anytime, anywhere.