security and emergency apparatus and installations for marine vessels and offshore structures, namely ship security alert systems comprising transmitters, transceivers, signaling devices, satellite communication terminals, computers, computer terminals, analog and digital display units, computer terminals and keyboards, power management unit, back-up battery unit, and emergency alert buttons; alarms for marine use in the nature of an audible and visual signaling and notification device; telecommunications and position-indicating apparatus, namely instruments for remotely tracking and transmitting information about the position of moving and stationary marine vessels and/or meteorological information from marine vessels by radio to a remote location; satellite tracking and positioning systems; satellite communication apparatus and instruments, namely transmitters, transceivers, signaling devices, namely, portable radio beacons for transmitting emergency distress signals, analog and digital display units, data processors and signal processors; and parts and fittings for all the aforesaid goods