1. Hygrometers, polymeters, hygrostats, hygrographs, meteorological thermometers, weather stations, psychometers, thermographs, thermo-hygrographs, meteorographs, remote humidity and temperature measuring, logging and regulating installations, barometers, barographs, altimeters, baro-vacuumeters, pitot tubes, precision pressure gauges, micromanometers, flow sensors, mechanical or electric vane and cup anemometers, thermal anemometers, wind recorders, electric remote wind measuring installations, wind warning installations, rainmeters, rainfall recorders, rain sensors, recording drosometers and evaporimeters, sunshine recorders, net-radiation recorders, total radiation recorders, light meters, ships' barographs, miniature vane anemometers, meteorological measuring masts