... treatment function of 3-6 digits Selection of password display or not display after closing door each timeAble to forcibly open the ... , month 01, date 01, hour 00 and minute 00. 2. Display screen will automatically scan after electrification before entering into standby ... case of door closed, press the key “↓” twice, “super” will display before inputting master password of 6 digit, (no number displayed ...