solopaddler wrote on Jan 5^th, 2018 at 1:43pm:

Just so I'm clear, you're simply placing the transducer inside a water filled ziplock in an approprite spot on the bottom of the canoe when you're ready to fish? That works?

It honestly works fine. That picture was my first test in a foam core Prism that I borrowed in 2009. As you can see it had a foam core.

Normally, you just have to put a quarter of a sponge of water in the bag after portages. Solo, I usually put it in the bow where there are essentially three walls already. You could duct tape it so it didn't flop and go dry but I don't recall any issues of note.

One thing that I've learned from borrowing other people's stuff is that if you forget to turn off the unit on a dedicated system before turning the canoe over for the night, and it's pinging the stars all night, that will really suck all the juice out of a brand new set of 8 AA lithium batteries. Been there done that.  First day out.  Arrrgh! Live and learn.

Why they don't provide the option of putting the batteries in the unit itself and using bluetooth for the puck is beyond my pay grade. I'm not a fan of cordage in this instance. YMMV but I wouldn't recommend anything that didn't work for me.