"Password electric control lock" is not afraid of thief hydraulic shears. The folk lock king Xie Shifu has been studying locks for more than ten years and has studied several kinds of password locks. "Because the materials of the locks are specially treated, there is no password and you can't open it."

Scope of application: anti-theft home, electric car, motorcycle, bicycle

Recommended reason: the password lock does not use the key, just enter the password. The code lock material is made of carbon steel. After high temperature heat treatment, it is not afraid of thieves using hydraulic shear locks.

"Home security, thanks to the electronic eye remote control lock at home", Ms. Zhang, who lives in the residential area, said that because she was previously stared by the thief, Ms. Zhang thought a lot of ways to prevent theft. Finally, the electronic eye lock was installed by a friend. Cameras are installed in key parts of each room. "Whether it is going to work or on a business trip, just want to look at the home, you can do it online." Open the network and enter the password. The balcony, bedroom, kitchen, etc. are all displayed on the computer screen. "Thanks to this system, there is something in the house that is clear with just a finger."

Unsafe lock: AB key lock, this lock is the most unsafe, inserted into the lock with ordinary tin foil paper, it is easy to open when swinging from side to side. The circular lock cylinder has a shape, a cross shape, and the like. Master Zhang gave an example. The general one-shaped lock, as long as a screwdriver is inserted into the lock, it is easy to open the lock. Now the thief's tools are relatively complete, and the lock will not leave any traces after being smashed. However, the lock of the round hole, the key is more complicated, it is still not easy to open.