Welock Smart Lock Touch41 review: The smart door lock with a fingerprint sensor

With normal locking cylinders, the length of the cylinder is adapted to the front door. The respective length is measured from the center of the door and the cylinder is selected or manufactured accordingly. However, the Smart Lock Touch41 is only available in one length. In order to make the lock as versatile as possible, the manufacturer allows you to adjust certain areas of the two rotary handles. These can be moved within a square, and the appropriate setting is secured using a grub screw.

The knob on the inside can be completely removed for installation. The unit on the outside can be moved, but cannot be removed (burglary protection). This allows the lock to be adjusted on doors with thicknesses between 50 and 100 mm. In our test, this worked on two out of three doors. However, the problem with the third door was not the thickness but instead, a built-in security escutcheon in front of the cylinder. This is designed to prevent the cylinder from being drilled out and pulled out. However, the Smart Lock cannot be installed due to this reduced opening. 

In order for the lock to work, you have to insert batteries. To do so, you have to remove a cover held in place by a screw and subsequently, you fold out two flaps. After installation, one is also secured using a screw. Unfortunately, anyone with an Allen key can still access the batteries and can remove them. To mitigate this, Welock has installed a Micro-USB port into the device. If you connect a power bank to it, then the lock can be supplied with power so you can unlock it. This is also the manufacturer’s solution for if the batteries run dry and can’t be replaced quickly enough. Apparently, the lock can get 10 to 12 months’ use out of one set of batteries.

The lock is protected against water and dust (IP65 certification). Even so, the manufacturer recommends installing it into a door which lies beneath a canopy.