Scientific, surveying, photographic, optical, weighing, measuring, checking, supervision, life-saving and teaching apparatus and instruments, namely, meters, detectors, sensors, filters, lenses, and wires for enabling measurement, testing, follow-up, monitoring, reporting and verification of greenhouse gases and air pollutants emissions; softwares for enabling measurement, testing, follow-up, monitoring, reporting and verification of greenhouse gases and air pollutants emissions; softwares fo...