An energy-efficient, miniature, hot sensor anemometer designed for battery operation, including an hot airflow sensor, exposed omnidirectionally to the ambient air, for measuring speed of airflow. The anemometer is a subsystem incorporated in a miniature, self-contained environmental monitor....http://www.google.fr/patents/US5710380?utm_source=gb-gplus-shareBrevet US5710380 - Anemometer
