The Yale document fire safe 420 has a high security electronic lock with over 1 billion combinations. It has a digital lock with an illuminated touch-pad interface and back end bolts to secure the hinges from attack. It is ideal if you are away and have other people entering your property and has a programmable one-time user code - ideal for visiting guests who may need to use the safe for a short period.

The Yale document fire safe 420 has a privacy number input which allows you to enter the real code followed or preceded by random numbers to open the lock. This is useful if you suspect someone is watching you enter the code. If a wrong code is entered there is a time-lock which can be altered between 3-9 minutes. A lock-down period can be set from 1 to 48 hours. This ensures the safe cannot be activated for the given period. In addition to this, you can setup silent-mode to deactivate the touch-pad back-light and sound. The Yale document fire safe 420 can protect documents for up to 1 hour in the case of a fire and is tested & accredited to Korean standards.