Maritech integrated alarm monitoring system retrofit/upgrades are based on existing as ship fitted plans, where existing sensors will be used, and ECR cabinets/console will remain in position. New PLC units/PC workstations are installed with up-to-date SCADA Graphical User Interface (GUI). Diagrams and curves are illustrated for each monitoring/supervision function where the parameterizable and remote-controlled units are represented graphically in animated mimic diagrams, providing the operator with instantaneous access to all images and control of the parameters on workstations/touch screens on real-time or historical recorded data.