digitale Tastensperre # 6600-101

digital keypad lock #6600-101. 1. Especially suitable for installation by non-professionals. 2.High quality with competitive price. 3.Very easy to operate, suitable for office, house and apartment. 4.There are two kinds of passwords: Master password and sub password, which are easy to manage . 5.Change master passwords freely. 6.Master passwords can be used to add or delete any sub-password. 7.One-key opening function: freely press any key to open the lock. 8.If passwords are input wronglyfor three continuous times, it will stop for 10 seconds without any operation. 9.Mechanical keys for emergency use. 10.There are three kinds of mortice for you to adopt: Single- latch, four-latch, and five-latch. 11.Password capacity 300. 12.Use 9V extra power when power is exhausted which is safe and convenient.