I bought a used Lowrance HDS-10, GEN2 on eBay.
Arrived yesterday and I tested it by connecting it to my truck battery in the driveway.
First thing was to update the firmware in it.
There were 2 updates.
Then I went into it and reverted everything back to factory settings and then installed my Navionics chip.
Fired it up and then went thru it and set things up to the way I like it operate.
Sweet deal for only $300.
Shipping was only $10.20 via USPS
I have an 83/200hz transducer for it.
I will swap the Hook Reveal 7" out for this unit.
The Hook is newer, has chirp, and also down imaging (and maybe side - dunno), but it doesn't network into another unit(s).
I want 2 units on the console and one more up front by the fishing seats.
Anyway, if anyone here wants the Hook and its transducer send me a PM.
I'm sure I can give you a decent deal on it.
If nobody here is interested, I'll sell it on FB Marketplace or eBay.
Here is a link to the website for all the specs -
https://www.lowrance.com/hook-reveal/Here's some pics of the Hook -