Zastrin is launched to invent and manufacture High accuracy Military grade Undersea Warfare systems, especially Anti-Submarine Warfare(ASW) systems. Zastrin already developed and tested High Precision High Speed Sensor Inter-phase circuits, Ultra Low Noise pre-amplifiers, High Power Wide Band Amplifiers, Data Loggers (for prediction and ranging for Sonar Fixing and Ranging channels and Sonic Layer Depth plotting), Ultra High Speed Embedded Artificial Intelligence Platforms and Power Supply Units for underwater sensor networks and naval sabotage installations. Zastrin will invent/innovate Undersea Renewable Energy Harvesters to power up sea bed arrays and sensor networks, during the forth phase of our main project.