Nowadays, many families have installed anti-theft doors for their homes in order to ensure home safety. But is this safe? It is said that thieves can instantly unlock those A-level lock cylinders, so how to choose anti-theft lock cylinders?

Four step selection of high-quality lock cylinder

1. Look at the "teeth" of the key. The more teeth, the deeper the teeth, the more complex the arrangement, the greater the difficulty of opening, and the better the anti-theft performance.

2. Weigh the lock by weight, and compare the weight to the lock core. The heavier the weight, the better the quality of the lock core, the more beads inside the lock core, and the better the anti-theft function.

3. Choose the lock core based on its color, and compare the color with the workmanship. The high-quality lock core adopts electroplating treatment, with a smooth surface and bright color. The copper core with a dark yellow color is relatively sturdy and has good anti-theft performance. The lock core has a dull color, and the zinc alloy with gray white bubbles has average anti-theft performance.

4. The anti-theft performance of the lock cylinder is poor when the key is rotated and inserted. After the key is half inserted, use 5 to 7 force to rotate clockwise or counterclockwise and continue to press the key into the lock. The key that is stuck indicates poor anti-theft performance of the lock cylinder, and successfully inserting the lock cylinder in a semi rotating state indicates good anti-theft effect.

Of course! Just relying on these two locks is not enough! If other safety measures are not in place, it is still very dangerous!

When at home or not at home, one should carefully consider the situation and choose preventive measures!

Pay attention to several major preventive measures

① Anti theft doors can only be locked to prevent theft

② Cat's Eye Indoor Lens with Covering

③ Anti theft doors equipped with a straight or cross shaped key have poor anti-theft effect

④ The small advertisement on the door may be a mark left by the thief, please clean it up in a timely manner

⑤ Install bells or safety alarms

⑥ Install anti-theft bars on the ground floor

⑦ If there is no sign of A, B, C, or D on the door, it is not an anti-theft door

⑧ Take a walk at night and leave a light at home.