When selecting a UAV, prioritize Flight Endurance (Battery Life), which should ideally range from 30 to 60 minutes for commercial applications. Evaluate the Payload Capacity to ensure it can carry specific sensors or cameras (e.g., LiDAR, Thermal, or 4K Optical). Additionally, check the Transmission Range (C2 Link); professional models should support at least 7-15km of stable HD video transmission. Ensure the flight controller uses redundant IMUs and GPS/GLONASS/Galileo systems for high-precision positioning and safety.