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How to install fingerprint lock

Recently, I replaced the lock in my home with a fingerprint lock. I found that it was very convenient to replace the fingerprint lock if I didn't need to punch a hole. So I simply wrote about the purchase and installation of the fingerprint lock.

It is divided into three parts: the first part is the model selection of fingerprint lock, the second part is the installation of fingerprint lock, and the third part is the brand recommendation of fingerprint lock. I've also watched the recent unlock video, but I mainly like fingerprint lock.

Fingerprint lock model selection:

1. First, confirm the direction of the door opening (standing outside, facing the door, which side of the door shaft is open), then check whether the door is opened inside or outside, and finally check whether the door has a heaven and earth hook (generally imported brands do not have a heaven and earth hook).

2. Confirm the door thickness, lock tongue width and lock tongue length.

As long as you confirm the two data, you can choose the model. It's better to choose the size that can be used directly to avoid drilling. It's only easy to install without punching, because no extra tools are needed.

Installation of fingerprint lock

There are three steps to remove the old lock

1. First remove the door handle in the indoor direction, and at the same time remove the door handle in the outdoor direction.

2. Remove the keyhole part, as shown in the figure. This step can take out the square nail and lock pin, which is very important!
How to install fingerprint lock

3. Finally, remove the upper and lower screws of the lock tongue, and then pull them out( Pay attention to pull out the square nail and lock pin.)

Installation of fingerprint lock

1. Install the lock tongue into the door, and do not tighten the screw to install the door handle.

2. Insert the square nail into the outer door handle, and then align the square nail and the pull strip of the outer door handle with the response position to insert the outer door handle.
fingerprint lock
Note: pull the bar through the lock cylinder of the lock body, and the surplus part can be broken with pliers along the horizontal lines.

The handle of the back panel has a depth of about 20 mm to place square steel, so the square steel can grow a piece, and the head part of the square steel faces outward.

3. After inserting the lock pin with the correct length into the inner door handle, connect the wires of the inner and outer door handles, and then screw on the fixing screw.

Note: don't tighten the two screws on the back panel. Test whether all functions of the door lock can be used

Do not close the door during the test, and carry the key with you.
 
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