Profile: F T Technologies Ltd. is a manufacturer of anemometers for a wide range of wind monitoring and airflow measurement applications. All our wind sensor products incorporate our patented acoustic resonance airflow sensing technology. The unique acoustic resonance operating principle offers many advantages and user benefits when compared with other measurement techniques. The FT702LM is a solid-state wind sensor which uses a patented acoustic resonance airflow sensing technique to measure accurately both wind speed and direction.