First of all, smart door locks are generally C-class lock cores. Most of the general mechanical locks of security doors are equipped with Class A lock cores. According to GA/T73-20 15 "Mechanical Anti-theft Lock" of the Ministry of Public Security, the security level of anti-theft lock is divided into three levels: A, B and C, with A being the lowest and increasing in turn, and the opening standard of C-level lock defense technology is 10 minute. General brand smart door locks are equipped with C-class lock cores to prevent technical unlocking and have high security level.
Secondly, the material of intelligent door lock is superior to that of mechanical lock, and it has strong anti-destruction performance. Smart door locks are generally made of metal. Brand merchants are mainly stainless steel or zinc alloy, and some will choose aluminum alloy. But the material of mechanical lock is poor. The metal material of intelligent door lock is far superior to mechanical lock in durability and explosion-proof performance. Traditional mechanical locks are easy to be unlocked by technology, such as tin foil, because of their low damage resistance.
Thirdly, smart door locks should choose brands certified by the Ministry of Public Security. The "black box" of Tesla coil rumored on the Internet is actually because these inferior smart lock manufacturers have not made electromagnetic protection design in structure, and the general strength manufacturers will make circuit design protection in strict accordance with the requirements of the Ministry of Public Security, such as Tencent QQfamily smart door locks. This area has the most strict protection.
The smart door lock launched by Tencent QQfamily adopts a series of high-standard components such as zinc-copper alloy material, C-class brass lock core, 304 stainless steel automatic lock body, high-efficiency core master control chip, financial multi-dimensional living fingerprint head, customized encryption card and so on. The door lock should be regarded as an excellent product in the intelligent door lock in terms of safety and performance.