Marine Technology

Alarms, getting to know them better

Editor’s note: This piece originally appeared in the Ocean Cruising Club’s monthly bulletin ( This Maretron screen is from a sophisticated vessel monitoring setup. Green shows normal ranges, yellow indicates borderline and red signals an alarm…

The cutting edge in EPIRBs

Since emergency position indicating radio beacons (EPIRBs) made their debut as an aid for tracking crashed U.S. military aircraft in the 1950s, this technology has steadily evolved into more compact, highly accurate, life-saving devices priced well within the budget of any serious cruising sailor.