Scientific, nautical, geodetic, electrical, photographic and optical apparatus and instruments; testing apparatus and instruments; research, navigation, surveying, weighing, measuring, signaling, detecting, inspecting, life-saving and teaching apparatus and instruments; salinometers; oil level sensors; sonars; inclinometers; navigational instruments, including marine navigation apparatus; satellite navigation systems; alarm systems, including bridge navigational watch alarm systems; communication equipment, including antennas, antenna masts, point-to-point communication equipment, intercoms, intercom apparatus, portable emergency intercoms, radios and emergency radios; marking buoys; signaling buoys; signaling torch; flashing lights; light signals; life belts; life buoys; lifejackets; life nets; life rafts; life raft containers; life lines; signal and warning lights, including lifejacket lights, life buoy lights, life raft lights and life boat lights; marine evacuation systems; emergency lights [battery-backed lightning apparatus]; safety, security, protection and signaling devices, including safety and protective equipment, safety instruments, signal whistles, lights, buoys and lanterns, alarms, nautical alarm systems, warning equipment, emergency warning lights, warning lights [flashing beacons], safety lights, emergency flares, non-electrical distress beacons, emergency warning lights; lamps for use as warning beacons; emergency breathing equipment; fire extinguishers; fire blankets; fire hoses; navigation, guidance, tracking, targeting and map making devices, including direction finders; satellite navigation devices and instruments; apparatus and instruments for controlling electricity, including electronic power supplies and portable power supplies (rechargeable batteries) and battery chargers; lifesaving apparatus, including maritime distress flares; marine instruments, including echo sounders, sonar, speed and distance measuring instruments for yachts, boats and ships; computer hardware and software in the field of security and rescue; parts and fittings for the above, including lamp starters, alarm sensors, electrodes, display screens and sensors