Gil1800

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I bought this for use sailing, more as something of interest than something to rely on, since you really need to rely on how the boat is handling and not on a number on a screen. The app is impressive and gives what seems to be a realistic measure of windspeed. It seems to give a stream of instant readings so numbers flash on the screen in a flickering array, clustered around the speed. Only when you save the reading do yiu get a single average number. I guess that is how it is designed. It would be helpful if it had some instructions. It also seems to operate well in any direction so you do not need to point it into the wind. Again, instructions here would be useful. But for the price it remains a good tool and a great bargain.