What about shipping and delivery?

Our fulfillment partner fulfills orders within 1 business day (Mon-Fri), a timeline which does not include Weekends or Holidays. Please remember that the delivery of your order is the responsibility of the shipping carrier (USPS, Fedex, DHL). 

Once a package leaves our fulfillment center, you must reach out directly to the shipping carrier selected during checkout to resolve delivery issues. You should have your tracking number ready when reaching out to the shipping carrier.

Where can i find the complete install video?

1. You can find the install video in any product page

2. You can also find the video in ZKTeco offcial youtube channel here 

If you still have any problems with the product, check out the detailed install guide here, you can call customer service  at +1 862-505-2101 or email to 

How to use AL40B?

Operating steps

1, Touch the keypad to wake up the lock

2. Press 0 and # to access the menu

3. Enter a new three-digit user number e.g. 001

4. Press fingerprint thrice, or enter password twice, or swipe card

5. Press * to complete

Know more about the product here 

Check out the user manual here

How to register another adminitrator?

Operating steps

1, Touch the keypad to wake up the lock

2. Press 0 and # to access the menu

3. Verify administrator using Fingerprint, or card, or enterpassword and press # to confirm 

4. Enter a new three-digit user number e.g. 001 

5. Press 1 and # key to enter admin registration mode

6. Press fingerprint thrice, or enter password twice, or swipe card

7. Press * to complete, if you want to add another admin, please Press # to continueregistering

How long does the AL40B battery last?

It will lasts for 6 months ( equal to sweep for 6000 times )

How can I connect the lock to app?

Operating steps:

1. Download our ZK SmartKey in App Store or Google Play

2. Before pair with the APP please make sure you have registered as an admin in your lock and get digits

3. Cick the "+" button on the right then you can search out all the setups avaible

4. Click the lock mode you want to connect, there will be a pop-up requiring you input the digits

You can unlock your door within 15 meters when registered successfully

Safety Cautions 

1. Please download the app ZK SmartKey from App store or Google play platform, or scanthe QR code below. (It is recommended a WLAN network connection to download ) 

2. Make sure your lock is properly installed. 

3. Make sure the batteries has been installed properly in the lock. 

4. Make sure Bluetooth has been enabled in your phone. 

5. Make sure your phone is in the available range. 

6. Please register at least one adminstrator passcode for the lock. 

7.If the lock has been initialized, please deleted the lock in the lock list. 

8.Please do not operate the lock while connecting the app.

Why can I not open the lock by Bluetooth when using the ZKTeco Smart Key APP?

This is due to the incompatible Android / iOS system versions, to fix this issue, please upgrade the application to the latest version. 

After inserting the batteries, why does the knob dot of the indoor unit keep whirling, getting stuck and making noise?

Mainly, the problem is caused by the door lock components not being installed in the correct position. You need ensure the three components which included; the latch, highlighted spindle of the outdoor unit and the knob dot for the indoor unit are installed the correct way. Please refer to pages 7, 8 and 10 of the Installation guide for more help.


If you have other questions, just fill out the form below and we'll get back to you ASAP.

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