1. If the anti-theft lock cylinder is not precise, don't buy it casually

Because the face lock is also an anti-theft lock, the lock cylinder is the core of anti-theft. Don't listen to class C, just look at the key. The key has convex concave double-layer hole position, has two kinds of tooth flower above, the precision must be high. If the precision of the key is not enough, the anti-theft performance is far from enough. It's a matter of precision. Don't believe in grade C. Most of the C-level locks are not even A-level.

2. Don't buy lock cylinder without anti drilling setting

The lock cylinder has a built-in anti drilling bolt and anti drilling piece, and the lock cylinder has a protective cover. Otherwise, it's all fake class C locks. No accident now doesn't mean it will be safe in the future! Remember: theft prevention is always in case something happens.

3. Do not buy face recognition lock with anti-theft lock cylinder installed at the bottom of front panel

The intelligent lock with the lock cylinder at the bottom of the face lock can be opened by prying the door on the panel. It's very unsafe. The security of the face recognition lock with this structure is like a fake.

4. Don't buy without high frequency technology

Most of the cheap face locks, high-frequency transmitter point open, very unsafe. Don't be greedy.

5. Do not select the face recognition lock with pre stored dynamic password

Tens of thousands of passwords are stored on the lock, which seriously reduces the security of the password of the face lock.

6. Do not select the face recognition lock shared by data cable and charging socket

The charging port can read data, which is equivalent to exposing the password and user information. It's too dangerous.