You Value it, We Protect it. Total peace of mind : The safe comes with two anti-saw locking bolts (16 mm) and with steel body for protection against all attacks Steel construction with carpeted floor to protect against scratches and damage Pre-drilled holes (fixing bolts supplied) allow permanent mounting to floors, walls, or most hard surfaces for additional security. Incorrect Entry Alarm feature : Inputting the incorrect code 4 times sounds an internal alarm for 3 minutes and locks out the code pad for that time. Manual override can be used during alarm. Convenient to operate digital keypad with LCD display and a programmable combination of 3 to 8 digits. Uses 4 AA size batteries (1.5 V). In case of battery failure, the safe can be operated with a manual override function with 2 security override keys supplied. Solid steel construction for higher resistance to attack Equipped with an electronic lock and Digital pin access, Yale offers quick set-up and easy operation.