1. Use a suitable battery, preferably the one recommended by the manufacturer. In addition, when using the Fingerprint Lock, the user should try to use the same type and brand of batteries, and do not use different brands and different types of batteries.



2. It is forbidden to contact the panel with corrosive substances to prevent damage to the surface coating.



3. Do not hit or knock the casing with hard objects to prevent damage to the surface coating of the fingerprint… Continue