Other examples of the application of electricity, are the Anemograph of Dumoncel, an instrument for measuring the direction, elevation, and force of the winds; a heat regulator for hot-houses and drying chambers; and a system of electric communication between railroad trains.
Source: wiktionary
Two days later, Madigan's anemograph recorded winds of 100 miles per hour for the first time.
Source: wiktionary
Almost as bad was the status of the wind data: of his six meteorographs, only one ("Hergesell 104") had a working anemometer, and that instrument lasted only five flights in summer 1907 before it was lost when a cable parted; it functioned principally to help him calibrate his procedure for estimating wind velocity aloft without an anemograph.
Source: wiktionary