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Old 13th April 2013, 06:34 PM
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Delphinus Delphinus is offline
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Join Date: Nov 2009
Member of: CTC
Location: Portugal
Posts: 476

Originally Posted by rosstyoung View Post
How accurate is this app? I've read it uses sound and a know distance to calculate the speed?
I havenít tried it yet but a friend told me 3mt/s about 10 feet/s
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