... (without digital key) 2. Shutter thickness: 4mm hotel digital safety box AD-EA25Model NumberAD-EA25 (without digital key)Shutter thickness4mmThickness2mmNet ... , If you press the wrong passwords three times, the safety box starts a 15minutes self-locking protection.safe box , ... safe box,mini safe box, fingerprint safe box,safe,safety box,cash box,hotel safe,,electronic safe, fingerprint safe,hone ...