Breath Diagnostics Incorporated is primarily engaged in manufacturing measuring and controlling devices, not elsewhere classified, including meteorological instruments. Important products of this industry are physical properties testing equipment, nuclear radiation detection and monitoring instrumentation, aircraft engine instruments (except flight), and liquid-in-glass and bimetal thermometers. Also This also includes manufacturing surveying and drafting instruments, such as alidades, transits, sextants, theodolites, slide rules, and T- squares.