The lock cylinder of smart locks is divided into three levels: A level, B level, and C.
The lock cores of smart locks are divided into three levels, namely A-level lock cores, B-level lock cores, and C-level lock cores. The anti technical opening time of A-level lock cores is within 1 minute, and the mutual opening rate is extremely high; The anti technical opening time of B-class lock cores is within 5 minutes, with a high mutual opening rate; The anti technical opening time of C-level lock cores is over 800 minutes, and the area mutual opening rate is zero (one in a hundred billion). C-level lock cores have the highest anti-theft performance, and nowadays most fingerprint locks are equipped with C-level lock cores.
The lock cylinder of smart locks on the market is generally C-grade. A-grade lock core: single slot ball lock, single slot shallow and simple, anti technical opening time within one minute, high mutual opening rate, single row ball or cross lock ball structure. B-class lock core: The lock core has multiple slots and is deep, with a complex structure. The key surface has curved irregular wire slots. There are three types of lock cores: computer double row lock core, double row crescent lock core, and double-sided blade lock core. The anti technical opening time is within five minutes, and the lock cylinder can be opened within one minute by using a strong twisting tool. C-level lock core: The lock core type is a double-sided column lock core, with a key shape of a front and back blade structure key slot. The anti technical opening time is over 800 minutes. Using a strong torque tool to open it will damage the internal structure of the lock core, and the lock core will lock and cannot be opened.
The security level of smart lock cylinders is divided into A level, B level, and C level according to national standards. 1. A-level lock core, preventing technical opening for ≥ 1 minute, anti drilling for ≥ 10 minutes, anti sawing for ≥ 5 minutes, anti prying for ≥ 10 minutes, anti pulling for ≥ 10 minutes, and anti impact for ≥ 10 minutes. 2. B-class lock core, preventing technical opening for ≥ 5 minutes, anti drilling for ≥ 15 minutes, anti sawing for ≥ 5 minutes, anti prying for ≥ 15 minutes, anti pulling for ≥ 15 minutes, and anti impact for ≥ 15 minutes. 3. C-level lock core, preventing technical opening for ≥ 10 minutes, anti drilling for ≥ 30 minutes, anti sawing for ≥ 30 minutes, anti prying for ≥ 30 minutes, anti pulling for ≥ 30 minutes, and anti impact for ≥ 30 minutes.