SIGNSTEK™ ST-668 Ditgital Door Lock with Touchscreen Keypad | Black

$85.99 $86.99
Color: black

A Few Simple Steps... Make Your Apartment More Convenient and Safer

✔Convenient Keyless Door Lock - Are you suffering from being unable to open the door after dropping the keys? Have you imagined how those days be easy when you don’t have any metals in your pocket?

✔Protects Like a Living Security in front of Your House - SIGNSTEK™ touchscreen keypad locker features a touchscreen keypad, emergency mechanical key, anti-peep password, interchangeable door handle, mute function, stay unlocked function and waterproof function.

✔The Easiest Installation - As long as the aperture of SIGNSTEK™ ST-668 is same as your current lock, installation is just a piece of cake. It comes a hexagon screwdriver, follow the instructions and you will finish the assembling in 10 minutes even you are not a Lock Smith.

✔Lost the Codes? We have a hole! - No need to call firemen. Remove the keypad handle with a wrench. Insert the mechanical key. Turn the key clockwise and the electronic door lock opens.

✔Customer Service - Free Shipping! We offer replacement, return or refund if you are not satisfied with our products.




  • Anti-peep password: Users can create any random digits before or after the correct password (random digits +correct digits+ random digits).
  • Touchscreen Keypad has good performance in darkness, it also avoids the problems caused by unstuck physical buttons.
  • Built-in advanced PMS, Our power management system ensures that each set of batteries can play their longest life.  
  • If the battery run out of by unknown reasons, you can use the included emergency key to access the room.


  • 5-7 days domestic.


We will process the order within 24-48 hours of receiving the order.

We will also timely communication with customers by email within 24 hours if any special circumstance happens.

We offer free shipping for the contiguous 48 U.S. states. Transit time is 5-7 business days (because of the novel coronavirus, delivery time will be extended accordingly).

If you want expedited shipping, please contact us at

Note: Please confirm the product is in good condition before receiving.

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