Pure stainless steel mechanical rational structure enable for using more than 10 years.
It is very easy to change batteries in the lock
Using 4 x 1.5V standard alkaline batteries.
Unlock ways: Fingerprint or Keypad or Mechanical key
The fired users can be deleted individually without any effect on the application of the other users.
If the fingerprint is not input correctly. The handle is free,it can protect the door from opening by fore, and prolong the using of the mechanism of the lock
Fingerprint user capacity 150 and password capacity 78.
Especialy suitable for installation by non-professionals.
Use 9V extra power when lower power which is safe and convenient.