digital door viewer with sd card

Benderly intelligent technology Co,.Ltd is the leading company manufactured the hotel electronic lock in China. Providing a series of professional intelligent hotel lock ,including hotel electronic door lock system,hotel security precaution system,hotel accessories hardware facility etc. digital door viewer with sd card Resent years, our locks have been supplied to many countries: USA, Canada, Italy, Singapore, Southeast Asia Malaysia, Egypt etc more than fifty countries. Hope we will have a good beginning and get a long term cooperation with you.

For a few years,our company has been successively adoped by authoritative associates such as ISO,CE,FCC,RoHs etc.

Also our products have been gained several patents on the practical funchtions and unique design.

1.How does our lock work?

Every lock has a specific ID that can only be changed with special device that is connected to the lock directly. The cards are only programmed that way that there is a date until they are valid for being used as key, so if you steal a card and try to use it after the time of booking, the lock denies access even if the card has worked before simply because the date passed until it’s been declared as being valid.

Using a regular card-reader/-writer the values are secured using cryptographic techniques like signatures and/or encryption.

2.Why Choose Us?

(1) We are electronic hotel lock manufacturer since 2005.

(2) Prompt Feedback: within 24 hours.

(3) Self-made lock and software, can be adjustable for your special requirements.

(4) OEM/ODM Service offered

(5)Delivery in time.

(6)Nice Quality and Unique Design for the Locks'appearance..

(7) Reasonable price with good after-sale service.

3.How Long for the Warranty?

Usually One-year warranty.

If the lock cannot work within one year period( man-made improper factors are not included). Parts and software solution will be offered with cost price after 1 year warranty. 

4.How to supply power?

Use four pieces of standard 1.5V alkaline battery,usually 12-18 months service life.

5.Is master card available?

It is available, one card can be programmed to open different locks.

6.What can we do if the power is off?

There is continually sound from the locks, and please replace the batteries.

If the power is totally off, use the mechanical keys to unlock.

7.If some guests lose the card, how to open the lock?

Use the master card or waiter card to unlock, then use the card encoder to cancel the lost card.

8.How can I get the locks?

We cooperate with DHL, FedEx, TNT, UPS, EMS etc.

Or you can choose your own shipping forwarder.

Our hotel lock: