How to distinguish the ABC key of the anti theft door

Updated on Security door 2024-04-24
6 answers
  1. Anonymous users2024-01-23

    Distinction of A, B, and C keys of the security door:

    The A and C keys are generally red, and the B key is blue, but there is a notch at the front end of the C key.

    A key can be used before and after the failure of the insurance function, B key is provided to the installer to use, after the installation is completed, as long as the C key is inserted into the lock cylinder and rotates 360 °, the B key will automatically fail, and the A and C keys can be used as usual.

    After the C key is turned, use the B key to open it to confirm that the B key has expired, and the owner should not try to open it with the C key during the use period.

  2. Anonymous users2024-01-22

    The AC key is generally red, the B key is blue, there is a small gap at the front end of the C key, the A key can be used before and after the failure of the insurance function, the B key is provided to the installation workers to use, after the installation is accepted, as long as the C key is inserted into the lock cylinder and rotates 360 degrees, the B key will automatically fail, and the AC key can be used as usual. AB is actually the key used by the homeowner, after the house is renovated, the general AB key is in the package, the A key is without a plastic handle, the C key has two, and the B key has 3 to 4.

  3. Anonymous users2024-01-21

    Distinction: The AC key is generally red, and the B key is blue, but the front end of the C key is notched.

    The A key can be used before and after the safety function fails, and the B key is provided to the installer.

    After the installation and acceptance, as long as the C key is inserted into the lock cylinder and rotates 360°, the B key will automatically become invalid, and the AC key can be used as usual. After the C key is turned, use the B key to open it to confirm that the B key has expired, and the owner should not try to open it with the C key during the use period.

  4. Anonymous users2024-01-20

    First remove the fixed screws, lift the Roman rod, and directly buckle the curtain by hand, and the buckle on the curtain can be removed. Untie the rope on the back and see if the curtain is dry or washed, and if it does, send it to a dry cleaner for dry cleaning.

  5. Anonymous users2024-01-19

    AB is the key used by the homeowner, used after decorating the house, the C key is the decoration key, the homeowner uses the B key to start the lock cylinder, so that the C key is invalid, generally the AB key is in the package, the A key has no plastic handle, the C key is only two, and the B key is 3-4!

  6. Anonymous users2024-01-18

    - 2 aces

    1 b5 c

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Nothing has an impact. My family has been using A and B keys for many years. It's normal that you haven't upgraded all the time.