According to the different principles of the lock cylinder, anti-theft locks can be divided into pin locks, blade locks, magnetic locks, IC card locks, fingerprint locks, etc. There are two common types of mechanical locks and electronic smart locks.
When choosing a marble mechanical lock, you can refer to the door lock level according to the key. Generally speaking, the more complicated the concave-convex arrangement on the key and the more crescents, the higher the door lock level will be.
In addition to the key, the main lock tongue should be pure stainless steel casting as much as possible. The length of the main lock tongue is more than 20mm and the length of the oblique tongue is more than 11mm. This kind of door lock has strong anti-prying and anti-destructive ability.
When purchasing a smart lock, first check whether the brand has an ANSI certification mark. Secondly, check its sensitivity. Don’t be embarrassed or afraid of trouble. Try to open the door repeatedly and continuously to check whether the door lock is operating normally and whether there is any “no response” or “error” phenomenon.
Finally, we must ask about the battery life and charging method, as well as the use of the emergency mechanical key, to ensure that it is foolproof.
Finally, no matter which door lock you choose, you must follow the requirements when you go out to lock the door. Especially for some mechanical locks, it is clearly required to lock two turns. Some people just lock one turn and leave because of the trouble. As a result, the safety bolt is not fully extended, failing to achieve the anti-theft effect.
When buying an anti-theft door, generally there are the following names for the opening and locking methods of the internal and external door handles. Let’s learn it in advance:
Single live: It means that the handle on the outside of the door is fixed, and the handle on the inside of the door can only be pressed down to open the door.
Double live: It means that the handle inside and outside the door can be pressed down to open the door.
Double fast: means that the handle on the outside of the door can be lifted up to lock the door quickly, and the handle on the inside of the door can also be lifted up to lock the door quickly. You can also press down to open the door quickly, but the double quick handle must be used together with the double quick lock body to achieve the quick lock and quick open function.