YFM/520/FG2 - Yale Electronic Document Fire Safe Box Professional (Extra Large) /Local/assaabloyCOMHK/YALE%20PRODUCT/YFM520FG2forAAHKWebjpg-01-01.jpg Features State-of-the-art digital touchpad 1 billion+ digital combinations Tested to Yale Global Standards Code scramble input function for privacy One time access code Silent input option 1 to 48 hours total lockdown mode to deny access Resettable 4-12 digital user code 9V for emergency battery capability Low battery alarm signal Time lock when wrong code is inserted Made in Korea Technical details External dimension H x W x D: 522 x 404 x 440mm Internal dimension H x W x D: 410 x 300 x 300mm Net Weight (kg): 53 Volume (litres): 36.9 16mm steel locking bolts Hinge protected with 18mm steel back and locking bolts Use 4 x AA (1.5V R06) Certificates Tested to withstand up to one hour intense fire Internal temperature will not exceed 150 Degree Celsius in 927 Degree Celsius furnace