Ultrasonic sensors use a piezo element to generate acoustic oscillations in a range above 25 kHz, which is beyond the human auditory threshold. The ultrasonic wavelength is in a range of a few...
Direct reading Mechanical Vane, Direct reading Scale 5° resolution, Built-in Compass to find North at any place.
Hand Held Anemometer and Portable Wind Vane are available as a combination in a moulded carrying case with battery charger and spare Cup for Anemometer.
INTERNET USERS ALSO CONSULTED ON THE CATEGORY SPEED SENSORS
See also