Best underwater PI for magnetite saltwater beaches

[Johnnyanglo]

Searched around for info on underwater pulse machines/VLF suitable for use at saltwater beaches, this is what I came up with. What's your preference for an underwater detector for use on mineralized salt water beaches? Is there one that is more able than the others?

Excalibur II 1000
8" Coil.....Nulls over iron, not as deep as PI, good for wet sand in iron. Discrimination of iron decreases positive hits on ferrous.

Infinium LS
PI, 10x14 mono and 10x14 DD coils, 8

 

[landman]

You forgot the Barracuda...love that machine.

 

[steve herschbach]

n/t

 

[Ron Lord]

Did I miss some thing here ? Excal is not a PI detector. Won't go know where as deep as a PI detectors.