How do I ensure the Smart Lock C33 is installed properly?

Modified on: Thu, 27 Nov, 2025 at 8:59 AM


  • After installing the mounting plate, check for the locking/unlocking smoothness of the Smart Lock C33 with the included key. If the Smart Lock C33 cannot lock/unlock smoothly, please try loosening the screws and adjusting the height of the exterior assembly.
  • After installing the batteries, you will hear a beeping sound. If you do not hear a beeping sound, please check the polarities of the batteries.

    If you have any further questions regarding the eufy Smart Lock C33, please don't hesitate to contact us for assistance.

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