The Marine Refrigerator Call Alarm System is an essential monitoring solution designed for maritime applications. It continuously monitors the temperature inside shipboard refrigerators and freezers. If the temperature deviates from the pre-set safe range, the system instantly triggers both audible and visual alarms on the bridge or in the duty officer's cabin. This immediate alert allows crew members to take prompt corrective action, preventing spoilage of perishable cargo and provisions. Built to withstand harsh marine environments, the system ensures reliability, enhances operational safety, and helps avoid significant financial losses by protecting valuable refrigerated goods during voyages.