On Line Nautical Charts

[Scott]

Here is the Aquafix

http://www.acrelectronics.com/aquafi...ec%20Sheet.pdf

Here is the Rapidfix

http://www.acrelectronics.com/rapidf...dfixcatII.html

and Globalfix

http://www.acrelectronics.com/globalfix/globalfix2.html

In the spec sheets note the certifications.
Just be cautious in what you're purchasing and understand its limitations