My model, the Mini-Deluxe, produces a noise each time a keypad is pressed. The tone isn't loud per se, but an intruder could possibly hear it when the house is otherwise quiet. This model addresses that concern as it includes the option of turning off the keypad sound and/or motion alarm. The interior light is an incandescent lamp which remains on for 5 seconds when the safe is opened.
The manufacturer recommends replacing the batteries every year. When I did my research, staff at my local gun shop complained "the batteries are always dead in these things when you need access to the gun." Personally, it seemed like no one monitored their batteries.
So as I previously indicated, I'm anal about ensuring I have power when I need it...I change the batteries every 6 months. I use the old batteries in other devices that aren't critical to home defense. Oh, I should mention, the Deluxe model also includes an AC/DC power adapter. Between the power adapter and the battery back-up, I've always been able to access my gun. I've been using the GunVault for 26 months.
My only connection to GunVault is as a owner of their product, which I purchased through
Amazon.com. Hope this helps.