Dirt, teak and windlass

Some work on a wood/epoxy-boat is quite dirty and unpleasant. I am sure a steel boat is worse. Anyway, sanding the teak deck was such an unpleasant job. The teak itself was OK, but the graphite filled epoxy in between created a lot of black ugly dust. Fortunately the day was still and damp, so we didn’t contaminate our boat neighbors.

Here am I with the belt sander:

After maybe half an hour of hard work and two hours of cleaning it looked like this:

We also fastened the windlass. It looks good, even though we haven’t made the bow rollers yet.

I am thinking about buying a handheld wind meeter to use to get some data during sail trials. I used to have one but it is broke. Can anyone recommend a cheap model? Are they acurate?