Meet the S400: Your go-to solution for autonomous aerial inspections! Equipped with cutting-edge tech, including an 8MP HD sensor and advanced obstacle avoidance, it thrives in challenging environments. From mines to underground tunnels, it's your reliable eye in the sky, ensuring safety and efficiency. Even under extreme conditions with no satellite signals and strong electromagnetic interference, it is capable of high-precision navigation, real-time path planning, and autonomous obstacle-avoidance flight, demonstrating its exceptional environmental adaptability and intelligent flight performance.