Seacolture needs a set complete with floating system and real precise signalling. Just after summer 1998, Sicily was supplied in record time, with 36 surface buoys with a net buoyancy of 150 kg and with 36 deep water buoys with N.B. 350 Kg. together with a beacon for signalling the equipment. 
The beacon was especially planned in order to link together lightness, cheapness and precision.
