High Sensibility - Features a high-precision measurement sensor that automatically senses and displays maximum grip force. Capacity Range: 90 kg / 200 lbs. Adjustable Handle - Designed to accommodate both large and small hands. Adjust the knob according to your hand size for comfortable testing and accurate measurement of maximum grip strength. Supports multiple user settings - Easily set up profiles for 19 individual users, including number, g , and age. Save and recall test results for each user. The result is displayed intuitively - Each test is rated as "Low", "Normal", or "Strong" based on the age and g data entered. This feedback helps users track and improve their grip strength over time. Portable and suitable for training anywhere - Ideal for individuals involved in rock climbing, golf, tennis, or hand muscle rehabilitation exercises. Can also be used for training and relaxation in the office.