By no means trust this safe to function properly when you need it most. I purchased one and it malfunctioned repeatedly. I tried to return it and the merchant stuck to it's "all sales are final" policy. They wouldn't even give me a store credit to purchase a more expensive safe.
What's worse is when I brought the unit in and asked for a refund another salesman said another customer had just come in a few days earlier with similar issues so mine wasn't the only one.
Bottom line is it's a defective product that they are not willing to stand behind. Don't wait until you really need it to open for you to find that for yourself.