Scientific, nautical, marine, signalling, electronic, and life-saving and teaching apparatus and instruments; surveying, optical, measuring and checking apparatus and instruments; buoys; batteries; emergency position-indicating radio beacons; search and rescue transponders; receivers; transmitters; radio and telecommunications apparatus and instruments; devices for wireless radio transmission; marine radio communication machines and apparatus; portable radios; radio broadcast receiving sets; electrical apparatus for the locating of personnel programmed to use global positioning systems (GPS) and/or cellular communications; electric global position systems; transponders; distress signalling beacons; radio transmitters of electronic signals; global positioning system (GPS) receiver and satellite transmitter; emergency alerting and locating radio beacons with or without GPS positioning for search and rescue; computer equipment; satellite search and rescue ground station receivers; search and rescue software and software solutions; vessel tracking and monitoring systems; vessel tracking and monitoring software; vessel traffic software; maritime surveillance systems; maritime surveillance software; power systems; remote power systems; integrated radar, camera and automatic identification system software and software solutions; visual display units; lifejackets; lifejacket lights; lifebuoys; lifebuoy lights.;