The fireproof safe is UL listed and can withstand 1 hour at 1700°F. Provides 24-hour security in water up to 8 inches deep, offering safety in the event of a flood. Make your own unique digital combination fire safe that has an auxiliary locking key for added security. The Digital Combination Safe has a steel construction with four live-locking bolts, a hinge bar that is pry-proof, and a locking drawer interior light, as well as bolt-on hardware.
To ensure optimum efficiency, four top brand alkaline AAA batteries are recommended and are good for 8 to 10 years after the current year. Rechargeable and regular batteries do not usually have the necessary life span to provide long-term use.