It is so safe inside the small anti-lock button on the key control is only in the inside to open but must remember to use the key in the house lock the door must be pulled out of the door to the mouth of the mouth of the agent Outside with a key to open the door will appear to open the situation
The door is not open the door, if the internal safety knob is screwed on, for the outdoor staff is a key can not open the door, for the rest of the night Of the time is very effective, but if there is no way to rely on the lock core security level of security features to protect the safety of family property, and must use the key to reverse at least a lap above, but if the lock core level is not enough to turn Ten laps is useless Oh, criminals can use special tools for a few minutes or even seconds can open the door without loss! The The The The Can be online to understand the relevant information, if the lock is a low level of anti-theft level of the proposed replacement of high protection level of the cylinder, we recommend to you the public security organs recommended national key technology products gold point atomic ultra-B grade blade cylinder, Recognized good product! Specifically, you can consult your local service center
Is the difference between double insurance is: your family all came in, and then no one outside the door of the case can be screwed at the same time the key lock and then twist small emboli. If someone did not come in the case of only the key to turn back the key lock, can not play a small embolament, because the small embola is not subject to the key control, and family members have to knock on the door to the inside of the household The pits are opened. In addition you also need a good anti-theft performance of the lock cylinder
