The S400 Level 4B Autonomous Inspection Drone is designed to excel in extreme conditions, making it the perfect solution for mapping and inspection in challenging environments like staircases: 1. High-Precision Navigation Without GNSS Operates flawlessly in enclosed spaces like staircases, equipped with an anti-EMI system to ensure precise navigation without relying on satellite signals. 2. Autonomous Obstacle Avoidance & Real-Time Path Planning Utilizing biomimetic vision and powerful edge computing, the S400 perceives its environment in real-time, constructs detailed 3D maps, and plans intelligent flight paths to maneuver through narrow, obstacle-filled spaces.