How deep can this case dive? I never have anywhere to put my electronic car keys and this seems to be a good solution.
The box is designed for diving. You wouldn't want to anyway because of the volume of air inside. It would want to float. It would be best to leave your keys on the boat.
Can't tell you how deep it will go. The price is cheap enough so buy one and test it. Take it down empty to the lowest depth you will go (this is what many UW photog's do with camera equipment after each airline trip) to make sure it's still "safe". It appears as though it is structurally built to withstand 130' but you want to know if YOUR CASE is that durable.
The case has a rubber pressure equalization valve (the round thing in front), therefore I would not put much trust in going deep underwater for longer periods of time. But it is a great case. I had my camera in it the whole Colorado rafting/kayaking trip with no problems.
I don't know that answer. I use the cases for water sports ( wave runner, sport fishing, boating). Pelican cases are great for protecting your electronics and personalmitems from the elements.
This is not watertight. I took it on a dive, I think max depth was around 50 ft and the contents were flooded.