Hey guys this winter I will be putting two hds units on our boat. I have some questions for you guys. I will be putting a hds10 on the console and a hds7 on the bow. Can I network these two units together or do they have to be the same number? Also can I put the structure scan on at a later time or does that have to be bought with the unit. I had a guy tell me that use to fish the pwt that lowrance had lots of problems with water getting inside the unit when they first came out. He is sponsored by hummingbird? Is there any truth to this and if so has lowrance got it fixed? Thanks for the help guys
boos1906
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