My understanding is that the intent of a (wet) compass requirement is as a last resort/emergency/always available navigation tool - with the fluid serving as a dampening influence compared to a dry compass with no dampening. In order for any other type to qualify, there must be no external power needed to make it operational. Therefore, unless one of the magnetometers you have researched will always operate reliably without externally supplied power, then no, I can't agree.
There are probably other views on this topic, though. George --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
