The Multifunctional Velocity Energy Tester is a precision device designed for learning, experimentation, and testing flight speed and kinetic energy of fast-moving objects like arrows, badminton shuttles, and table tennis balls. With industrial-grade components and a clamp-rail system, it ensures accurate and repeatable measurements. Lightweight and portable, it also features intelligent battery protection, a digital display, and simple controls for efficient and reliable use in various environments. Main Features Measures flight speed (1–999 m/s) and kinetic energy (1–800 J) with high accuracy Clamp-type structure for consistent path alignment and minimal error Stores up to 40 groups of both speed and energy data Mini and portable design with easy-to-use interface Built-in multiple power protections including overcharge and auto-shutdown Technical Specifications Model Name: Multifunctional Velocity Energy Tester Working Voltage: DC 4.2V Battery: Built-in 3.7V 450mAh Lithium Cell Accuracy: ≤0.5% test error Speed Measurement Range: 1–999 m/s Energy Measurement Range: 1–800 J Weight Input Range: 0.1–10g Data Storage: 40 speed + 40 kinetic energy records Operating Temp: -10°C to 60°C Item Size: 130 × 80 × 50 mm Package Size: 175 × 115 × 95 mm Item Weight: 145g Package Weight: 240g