1. Open with time delay: time Delay opening from 0~99 minutes
2. Battery low alert: When the battery voltage is low, the electronic lock can still be opened 3 times
3. Wrong Entry penalty: Entry of four (4) consecutive invalid codes results in a 5-minute penalty time period.
4. Automatic Re-lock: The safe lock system automatically relocks after 4 seconds of being opened by a valid code
5. Memory function: With memory function, change the battery data will not be lost
6. Reset function: With reset function, the system will be restored to the factory setting after reset
