Electronic locking system with programable User code from 4-8 digit password. Automatic lock out after 3 continuously wrong entries Emergency override keys in case of lock out Front side - 2 solid steel live-action locking bolts ( 20mm) Low battery indicator External power source for Emergency use. Concealed hinges offer added protection against attempted break-ins Mat and anchoring provision available. H series safes, Hotel mode is default Audit Trail facility is not available.