1. accurate measurement. Due to precision device, same as card rail, and fixed equipment each time after same action, and can be made with guide rail with use models in parallel, so measurement results error is small, dynamic fluctuations are small. 2. Enhanced Stability Accuracy: Improved design effectively reduces test time impact, offering stable and precise measurements for consistent, dependable data. 3. Comprehensive Display and Controls: Featuring a digital display tube, sensitive function keys, and LED indicators, this panel offers a userfriendly interface for easy data interpretation, enhancing testing experience. 4. Expanded Functionality: In addition to measuring speed and motion energy, this versatile device can store up to 40 sets speed and motion energy data, offering a wide range of measurement capabilities for comprehensive analysis. Furthermore, it incorporates multiple power management features such as overcharging protection, overdischarging protection, shortcircuit protection, and smart shutdown options, ensuring safety and efficiency.