ACR OLAS Exposure Series Guardian [EXPOLASGUARDIAN]Wireless Man Overboard Guardian with Engine Kill Switch for Powerboats The ACR OLAS Exposure Series Guardian acts as a wireless engine kill switch and MOB alarm, stopping the boat within 2 seconds if someone falls overboard. It connects up to 25 OLAS transmitters, covering vessels up to 50 feet for crew safety without wired cords. Engine stop function cuts power when a tag goes out of range, preventing unmanned vessel drift and enabling quick