Posted by admin | Posted in Thermo Hygrometers | Posted on 17-03-2010
Tags: anemometer, kiteboarding, wind, windscribe ultrasonic wind meter, windscribe ultrasonic wind meter reviews
A look at what is currently available on eBay
 Davis WindScribe Ultrasonic Wind Meter US $93.46 
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 DAVIS WINDSCRIBE ULTRASONIC WIND METER 0-150 MPH 276 US $108.00
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 Davis Instruments 276-Davis WindScribe Ultrasonic Wind Meter US $97.63
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 Davis WindScribe Ultrasonic Wind Meter #276 US $139.51
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 Davis WindScribe Ultrasonic Wind Meter 276 NEW !!! US $107.24
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 Davis 276 Portable WindScribe Ultrasonic Wind Meter W/Lanyard US $114.99
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 Davis Instruments 276-Davis WindScribe Ultrasonic Wind Meter - Kit US $107.39
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Where can I find a cheap wind meter with USB interface?
Here you can see a $95.89 Ultrasonic Wind Meter. Without USB!!!
http://www.wolfcamera.com/product/MP63526582.htm
Davis Instruments WindScribe Ultrasonic Wind Meter
Here you can see other wind sensors.
The cheapest ultrasonic wind sensor here is
http://www.fondriest.com/parameter/wind_speed.htm
Vaisala WMT52 Ultrasonic Wind Sensor $1,015.00
It's very expensive! How to make a cheap wind meter with USB interface???
If you go to microchip dot com they have app notes for connecting their $5 t0 $10 microcontrollers with built in usb to almost every thing, An anemometer (Wind Speed Meter) can be made by cutting 2 hollow balls in half and putting them 90 degrees apart on a revolving structure. You could by a cheap wheel at lowes and glue them on. glue a magnet near the axle on the wheel . glue a "reed switch" on the axle near the wheel. bring 2 wires from the reed switch to a resistor, 5V and gound at the microcontroller. this gives you the signal for he usb. Wind speed is proportional to switch closures per second. You will have to write USB handler software to use the data (not hard, you can find help on the web)