Scientific, nautical, geodetic, electric, photographic, cinematographic, optical apparatuses and instruments, apparatuses and instruments for weighing, measuring, signaling, controlling and inspecting, assisting and life-saving, and teaching, namely, weighing machines, cameras, laser scanners for industrial inspection; apparatuses and scientific instruments for geotechnics, geomechanics, structures and environmental analysis, namely, surveying instruments, surveying chains, levelling rods, inclinometers and removable inclinometrie probes for use as a surveying instrument, surveying instruments in the nature of tiltmeters, fixed and portable inclination sensors in the nature of clinometers, right and reverse pendulums in the nature of level indicators, levelling rods for surveying, optical coordinometers in the nature of optical coordinate measuring machines, telecoordinometers in the nature of telecommunications coordinate measuring machines, vibrating-wire instruments in the nature of power wires, resistance wires, piezometers in the nature of pressure measuring meters for use in excavation, electric piezometers in the nature of electric pressure measuring meters, pneumatic piezometers in the nature of pneumatic pressure measuring meters, small probes for measurement of the water level in wells and piezometric pipes, absolute and relative pressure transducers that convert hydraulic or pneumatic pressure into analog electrical signals for monitoring and controlling hydraulic or pneumatic systems, hydraulic and electric pressure cells in the nature of hydraulic and electric pressure gauges, hydraulic and electric pressure indicators, crackmeters in the nature of surveying instruments for measuring cracks, electrical displacement transducers, extensometers in the nature of instruments for measuring the stress and strain on materials relating to material deformation, electronic apparatus for testing compression, strength, hardness and tensile characteristics of industrial materials, stiffness testers in the nature of ductility testers, microhardness testers, tension testers, joint meters in the nature of tension testers, weighing apparatus and instruments in the nature of electric and hydraulic load cells, DSM settlement gauges in the nature of differential settlement monitoring gauges for measuring level, pressure and force, electric-hydraulic settlement gauges in the nature of electric-hydraulic settlement monitoring gauges for measuring level, pressure and force, level measuring machines in the nature of level, hydrostatic optical profilers, level gauges in the nature of resistive and vibrating-wire strain gauge bars, strain measuring instruments in the nature of magnetic strain gauges for embankment and mono-base and multi-base hole, thermometers not for medical purposes and thermometer probes not for medical purposes, instruments for convergency measurements, namely, lasers for measuring purposes, angle finders; hydrologic instruments, namely, electrical wires, flow rate meters, level meters in the nature of level gauges, level indicators, water samplers, namely, water meters; digital measure control units consisting primarily of electrical controllers, electrical controlling devices, electric control panels; electronic data loggers and data acquisition units consisting primarily of data processors, electronic data recorders; monitoring software for data analysis, monitoring and recording measurement data; relevant accessories, namely, electrical switch terminal boxes, junction boxes and measuring boxes in the nature of instruments for measuring length, protection boxes in the nature of electronic safes, electric cables, cable splicings in the nature of cable connectors and electric connectors, electrical connectors, power connectors