Surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking, and supervision apparatus and instruments, namely, theodolites, cameras, microscopes, telescopes, reflectometer, spectrometer, magnifying lenses, scales, measuring tapes, weighbridges, fire alarms, air pollution alarms, equipment failing alarm, sensors for detecting environmental conditions in work environments, industrial processes and applications, namely, inclination sensor, proximity sensor, prox...