The Navygator Pro (Ocean Plan) is an advanced underwater acoustic communication and positioning system designed for diver safety and coordination in professional operations. It supports 3D underwater positioning and two-way messaging between divers and surface units, enabling real-time situational awareness and communication. The system works even without surface signal support, allowing divers to maintain a covert, independent acoustic network. It offers an SOS alarm function and abnormal-state warning to alert teammates immediately when a diver’s depth, speed, or distance limits are exceeded. The Pro unit features a 4.3″ color display, a built-in compass, and a depth-awareness interface to guide navigation. With a communication range of up to 1,500 m, it enables extended underwater networking across operational zones. The battery capacity supports an 8-hour mission time on a single charge. Its rugged housing is rated for depths up to 200 m, making it suitable for commercial, scientific, or special-forces diving. Flexible networking options let you integrate other devices like Mini divers (Navygator-M), beacons (Mark-5), or surface control stations for scalable dive management.