Scientific apparatus and instruments, namely, anemometers, barometers, directional compasses, magnetic compasses, GPS directional compasses, gyrocompasses, marine compasses, electric GPS sensors, thermometers other than for medical purposes, hygrometers, precipitation sensors not for medical use, pyranometers being electronic sensors for measuring solar radiation, air quality sensors not for medical use, electric sensors, meteorological instruments, and digital weather station instruments; su...