SWITCH UNIT PH718 FOR YOKOGAWA PT500 AUTOPILOT: The Switch Unit PH718 for Yokogawa PT500 Autopilot is a key component that facilitates the smooth operation of the autopilot system. It helps in the seamless communication between the vessel’s navigation equipment, ensuring that the ship follows its predetermined course without manual intervention. The unit is designed to withstand harsh maritime conditions, ensuring reliable performance and longevity. It is a crucial part of modern autopilot systems, ensuring safe and efficient navigation for vessels.