Safety performance 1. The quality of the lock cylinder and mechanical key lock cylinder directly affects the anti prying and stability of the door. This part is also very important. No matter how good the fingerprint lock is, it ultimately cannot be separated from the lock cylinder part. So when choosing, it is important to understand the lock cylinder levels of each brand. At present, the standards of the Ministry of Public Security have two levels: A/B, so when choosing a lock cylinder, at least B level or better should be chosen. 
2. The lock body, which is equivalent to the human heart, is the most core part. The friction between the door lock body and the door lock body is very severe every day, and a sturdy and wear-resistant lock body is a must. Secondly, it is also necessary to know in advance whether the door lock can cooperate with the heaven and earth hook. stability Like most electronic products, Smart Lock may be unstable. So stability is one of the most important indicators of fingerprint locks, and it usually takes a long period of actual use to confirm whether it is stable. When making a purchase, it is best to choose a strong manufacturer. Strong enterprises usually undergo multiple experiments, evaluations, and have certain production experience. Their products are definitely more stable than ordinary manufacturers. Unlock method The general unlocking methods of Smart lock include fingerprint, password, IC card, mechanical key, mobile phone APP, etc. Mechanical keys are the unlocking method for all locks, and others are chosen based on personal usage habits. Young people generally choose two options: fingerprint lock and password. If guests are not at home, unlocking the mobile app is more convenient. Elderly people generally use passwords, fingerprints, and IC cards to unlock more. Functionality 1. Automatic locking: automatic locking when closing the door
2. Password anti peeping function: Is there a virtual password set to prevent others from peeking into user passwords. 3. Can emergency power supply be used
