magnetometers

There are many arguments arising about this. I think it’s possible but it need to be used in conjunction with accelerometers. Then it may give the absolute orientation. But references along two axes are necessary. It requires separate station to get good accuracy. Some may prefer an...

Recently completely factory refurbished (Cost $1000.00) head to toe by JW Fishers, have not put in water since it was refurbished, have receipt. This is basically now a new unit electronically, it is used so has scratches, etc. It does include the spare battery (just put new battery in...