SkyMate
I have the Speedtech Skymate wind meter (SM-18,)I got it for Christmas a year ago, see link. Nice little unit, but the novelty wears off after the first season and I find I don't use it as much, actually have to make a concious effort and wear it around my neck to remember. They work well and are sort of fun at first, you can actually keep a record of what wind speed requires your first reef or what wind speed is required to hoist your sails (if you are lazy like me) actually you might start gaging wind speed for lots of activities. After a season of it you might ask yourself what for? Still a neat little item for the sailor who has everything.