1. After the low battery alarm, please replace the battery immediately to ensure the normal use of the door lock.

2. Fingerprint lock shall be waterproof. This is common sense. There are many electronic devices in the fingerprint lock. If water enters, it will interfere with the electronic circuit.

3. Fingerprint lock can only be used to open the door. The button to open the door outside can only be pressed by hand, not by hard objects.

4. If the door is deformed, the friction of the combined diagonal tongue entering the door buckle box will be too large and cannot be fully extended. At this time, the position of the door panel should be adjusted.

5. The battery of fingerprint lock will generally choose alkaline AA5 battery with large capacity, which can ensure the service life of fingerprint lock battery.

6. It is forbidden to contact the lock face with corrosive substances, so as to avoid damaging the protective layer of the lock face and affecting the glossiness of the lock face.

7. After the fingerprint collection window is used for a long time, there will be dirt on the surface, which may affect the normal use. At this time, you can use a soft cloth to remove the dirt.

8. When using the fingerprint lock, the sliding cover of the sensor and password keyboard should not be closed or opened by hand.

9. The handle is the key part of opening and closing the door lock, and its flexibility directly affects the use of the door lock. Therefore, do not hang objects on the handle.