To date, all US internet security cameras have seemed to require 110v power and a wifi connection. Those are less than optimal on a sailboat. Even if you have shore power, a simple pull of the plug and your security is off. The wifi is often the bigger problem. Most marina wifi routers seem to ditch connections on a timer, so that the entire marina doesn't eat up bandwidth like this. Our marina even requires a second log in page that devices have a hard time managing.
This new device from Arlo operates both on a battery and over the cellular LTE network independently. You could install it anywhere on a boat, inside or out. Operates on motion detection, with variable sensitivity. Very cool.
It's pretty pricey and you must pay for a cell data package. They offer three different providers, which either allow for a variety of data sizes or an unlimited package from Verizon for $20 per month. Considering that I was thinking about getting an unlimited cellular hotspot to allow for this, that would have been closer to $100 per month, this is much more affordable.
In my home, I have the wifi version of Arlo and love it. Works great. Let's me know when anyone approaches the house and when the cleaning lady arrives and leaves. I get a notification on my phone.
I've had a desire to put a camera down below to know when the marina access my boat. Generally, its because they are doing maintenance. Wouldn't you love to see how long they were really aboard and what they were doing all that time?
More importantly, we think we had kids aboard a couple of years back. No damage or anything stolen, just missing a little booze and a bunch of doors and lights not the way we left them. We're guessing it was a different purpose. All sheets were immediately washed.