9 Scientific instruments, namely conductivity meters, and electronic analyzers for testing and analyzing chemical and biological substances for the presence, absence or quantity of target chemicals, biologics, containments; Nautical and photographic apparatus and instruments, namely underwater housings for cameras, underwater enclosures for cameras and underwater enclosures for photographic lenses; Surveying and photographic apparatus and instruments, namely cameras, lenses; Cinematographic apparatus and instruments for sound recording; Optical apparatus and instruments, namely transmitters, receivers, character recognition apparatus; Weighing and measuring apparatus and instruments, namely bevels, rain gauges, hourglasses for time management; Signaling devices for measurement and quality control of materials processing by laser; apparatus for checking flight parameters, authenticity of banknotes; Life-saving apparatus and instruments, namely rafts, capsules for natural disasters and teaching apparatus and instruments in the nature of hairdressing training heads, manipulative blocks for the visualization of math concepts; Apparatus for sound or image recording, transmission and reproduction; blank magnetic recording media; blank sound recording discs; blank compact disks; blank DVDs; blank digital recording media; Data processing equipment; computer; downloadable software for processing images, graphics and text, optical character recognition, remote control of household electrical appliances