Aluma Ducer??

[rolmops]

I just found this on crappie 101.Does anybody know anything about it?
http://www.radarsonics.com/AlumaDucer.htm

thanks,Rolmops.

 

[sprintst]

Re: Aluma Ducer??

They do look like the way to go. I follwed a link that showed compatibility with different fish finders...if I can find it again.

I was looking for a review from someone who has used one.