How to choose a lock cylinder?

▶If the lock core height is less than 30 mm, choose the Small 70 size.
▶If the lock core height is 30 mm or above, choose the Large 70 size.

4-IN-1 keyless entry door lock

▶Smart deadbolt lock equiped with multiple unlock ways, Including fingerprint, password,Tuya App bluetooth unlock, and so on, no more worry about forget taking keys and the problem of losing keys.

Durable and long-lasting

▶Up to 180 days of long battery life.
▶When the battery level falls below 20%, the red and blue indicator lights flash alternately to remind you to charge it.

Fast Installation

▶No need to drill the door or replace the lock body.
▶You only need to remove the original lock cylinder and replace it with the smart lock cylinder. There’s no need to change the structure of the door—just a simple swap, and your door instantly becomes a smart lock.