All hand-held wind-meters are inaccurate. You are measuring the wind blowing at ground level with the flow distorted by the ground and everything around it. The only way to get an accurate reading would be to put one up a 10m pole with no part of the pole or support interfering with the meter.
The most effective way of judging the wind is to walk around a bit and look and listen.
If you are standing facing the wind and you can hear a definite solid wind blowing noise then it is probably windy enough to go kiting using your light wind gear.
If there's white caps all over the place and sand and **** blowing about then you might want to use your small kite.
If the wind is blowing offshore then there won't be any white caps, unless it's really ****ing strong.
If you really must buy a wind meter then the small Hall are are about the best available www.hallwindmeter.com/gliders.php They never break. The batteries never go flat. They read fairly consistently.
Sandgroper's diy wind meter actually works quite well. And it is pretty consistent with its readings. Anyway it saved me 50 bucks. Thanks Sandgroper! ![]()