If the Fingerprint Scanner has an abnormal alarm function

The quality of the spring also determines the service life of the lock. If the spring quality of the lock is not good, the handle is easy to droop, and the life of the lock will be greatly shortened.

Purchase tips: Try the toughness of the spring in the lock. A good spring feels very soft and has a moderate hardness.

If the lock is not locked well, bad guys will have an opportunity to take advantage of it, and the owner's property may be lost. This is a realistic problem.

Therefore, whether the Fingerprint Scanner has an abnormal alarm function should be a sign of its quality.

A Capacitive Fingerprint Scanner with an abnormal alarm function will generally automatically sound an alarm within 3 seconds of an abnormal situation in the lock to attract the owner's attention and re-lock the door.

This is a way to distinguish the quality of the Fingerprint Scanner. In addition to these basic aspects, you should also look at the manufacturer's certificate of conformity, production license, etc.

Because the Capacitive Fingerprint Scanner manufacturers with these certificates are definitely regular manufacturers, the products they produce must have a certain quality guarantee.