Standby status is indicated by two short beeps. The safe locksafe lockA safe (also called a strongbox or coffer) is a secure lockable box used for securing valuable objects against theft and/or damage from fire. A safe is usually a hollow cuboid or cylinder, with one face being removable or hinged to form a door.https://en.wikipedia.org › wiki › SafeSafe - Wikipedia system automatically relocks after 6 seconds of being opened by a valid code. a) Repeated beeping (8 beeps) during an unlock operation indicates that the battery is low and needs immediate replacement.