It's safe to choose the gate lock and C level.

The national public security will advise you to choose C-level locks, so it is relatively safer to choose C-level locks for gate locks. Often read the news there will be all kinds of reports of breaking the door lock and entering the door: during the day, the owner is usually not at home and is not easy to be found. The place they choose is usually in residential buildings, factory dormitories, etc. they pretend to look for people or visit the door, knock on the door first, and test whether there are people in the home. If they are sure that there is no one in the room, they take out tools to quickly break the door lock and steal. If someone comes to open the door or has a neighbor to ask, they randomly report someone's name and ask if someone lives here. When the other party replies that there is no one, they cover with words like "I'm sorry, I knocked on the wrong door" and leave quickly. If there are too many advertising materials inserted in the door crack and handle of the household, it means that the head of the household has not cleaned up for a day or two, so the thieves judge that the head of the household must go out, so they dare to steal boldly. Some thieves know how to camouflage before committing a crime. They carry a bag of fruit or gift box every time they commit a crime. In fact, the box is empty, or they pack some things in disorder. When they are successful in stealing, they will throw them away. This kind of day burglars, the location of the crime is mostly those residential buildings. Day burglars choose 8:30-11 a.m. and 2:30-4:30 p.m., which is called "golden time". There are two types of burglars who need to be more careful when they find signs at the door. The first type of time is basically from 7:00 p.m. to 10:30 p.m. and you can know whether there are any people at home by lighting. This kind of burglars basically step on well during the day and wait for the opportunity to commit crimes at night.

Marriage and festivals are the most vulnerable to theft. For those newly married families with the word "Hi" posted at the door of their home, as long as the burglars find the lights are black, they will know that the newly married couple must go out for tourism, and such families become the important targets of the crime. Some thieves like to commit crimes on holidays, especially new year's Eve, first day, second day, Lantern Festival and Mid Autumn Festival. Because according to the traditional Chinese custom, on New Year's Eve, everyone usually goes back to their parents' house for new year's Eve dinner, or the whole family goes to the hotel for new year's Eve dinner. On Lantern Festival, Mid Autumn Festival and family reunion, many families will be left unattended. Moreover, the festival is also the climax of people's consumption, and there will be more cash at home. In addition, some organs and units are not on duty during holidays, or symbolic duty, lack of security measures, leaving opportunities for thieves to commit crimes. It is understood that in these places, about 60% of the burglaries occurred during the Spring Festival.

According to the regulations of the Ministry of public security "mechanical anti-theft lock", the anti-theft lock is divided into general protection level and advanced protection level according to its anti-theft ability. The locks of general protection level are indicated by the letter "a", and the locks of advanced protection level are indicated by the letter "B". The technical unlocking time of A-level anti-theft lock shall not be less than 1 minute, and the destructive opening time shall not be less than 15 minutes; the technical unlocking time of B-level anti-theft lock shall not be less than 5 minutes, and the impact opening time shall not be less than 30 minutes; the technical opening time of C-level anti-theft lock shall not be less than 10 minutes. Therefore, the C-level anti-theft lock is relatively safer.

Therefore, it is recommended to select Level C for the door lock, which is relatively safer, and remember to lock it when going out. In this way, it is not easy to open up the theft gang.