More varieties: We are one of the world's intelligent lock manufactures that offers the most exhaustive varieties, e-xpertlevel advices and the most flexible choices for diff-erent users and application environments.

Safer: DAVID computerized lock is specially designed with an insertionproof and sawproof five deadbolt structure. To avoid the card to be left, the intelligent card lock opens only after the card is pull out.
Once the door handle is turned, the door handle is turned, the door is locked to protect from tracking intruder.Audio alert when the door is not properly closed.

Easier: On checkin,a guest card can be made with any empty card (not necessary to prenumber keys). The guest can keep the key of intelligent card and can have free access to h-is room without bothering the floor waiter.

Ease of control: There is a time limit for the intelligent card key to function;the lock opens only within the limit. Therefore you need not to worry for any payment delay of rent (The time limit for the card can be extended as req-uired after payment is made).

More Beneficial: The use of intelligent card locks means fewer floor housekeepers. No need to chance the locks in case of lost of room keys. The card can be a good advert-ising media and bring more guests.

Power Supply

One 9V Superposition Battery or Six AA Batteries.

The Power Exhausts

Static state:  10 uA below.
Dynamic state: 200~400 mA.

Locking Record

240pieces(about one mouth's records).

Temperature

0ºC -700ºC

Humidity

20%-80%

Unlocking Time

< 6 seconds.

Interface Function

Be able to be connected with other systems developed by China or foreign countries.

Card Functions

Open locks and safes, switch on power, pay bills.

Locks Classification

Guest room lock, Floor lock, Elevator lock, Online lock.