DG-91 1.Pure stainless steel mechanical rational structure enable
for using more than 10 years. 2.It is very easy to change batteries
in the lock,just need several minutes on one lock. 3.Using 4 x 1.5V
standard alkaline batteries. 4.Unlock ways: Keypad or Tag. 5.If the
fingerprint is not input correctly. The handle is free handle; it
can provide the door from opening by fore, and prolong the using of
the mechanism of the lock. 6.Keypad user capacity 300. 7.No longer
installs the electrical machinery into inside the mortise, which
facilitated the maintenance work. 8.Use 9V extra power when lower
power which is safe and convenient. 9.If input wrong passwords for
3 time continuously, it will stop for 15 econds automatically.
10.Can delete the users individually who were fired.But there is no
effect for the other people to use. 11.Very easy to install and
suitable for unprofessional user to DIY (Do It Yourself),Especialy
suitable for installation by non-professionals in ordinary family
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