came across this item thought Id share it

seamantec.com/

Select to expand quote

Donk107 said..
Struth HG

They look expensive

All i can afford is a couple of inches of wool to tie to the shrouds to see where the wind is coming from

Regards Don

Front page said down load for free or buy $100 I have not had a really good look at it Donk but you can set up lots of instruments on a PC or lap top screen plus pads as well

That would be less than Loose changes Red wine allowance for the week Donk . Front web page said down load for free for a trail and to buy $100