Accurate measurement, this handheld electronic dynamometer is equipped with a high-precision strain gauge sensor to provide accurate grip strength values. It can withstand a maximum grip force of 180 kg/396 lbs, and its value can be accurately measured to 0.1 kg/0.1 lbs. This grip strength trainer can be widely used in sports training, sports and clinical applications. This handheld digital dynamometer can store test data for 19 users, and the large LCD display can display information such as user number, gender, age, grip strength value, grip strength level, up and down arrows, maximum value and peak change. Users can easily view their grip strength changes and feel the progress after each test. Our handheld dynamometer is equipped with an adjustable handle, which can be adjusted in length according to different sizes of palms to ensure a comfortable grip and obtain more accurate measurement results. The handle of this grip strength trainer adopts a wavy design, which fits the fingers better, and the bottom adopts an arc design, so that the hand will not feel uncomfortable no matter how much force is used. Made of high-density engineering materials, this grip strength tester is sturdy and durable, and is very suitable for people who want to monitor grip strength improvement through various training.