Fingerprint Door Lock Knobs for Bedroom

The 3-in-1 fingerprint door lock offers an excellent unlocking experience with 100 groups of fingerprint, 100 sets of anti-peep virtual passwords, and 2 physical keys. This device features indoor locking mode, auto-locking, mute mode, voice prompts, adjustable volume, and emergency charging to unlock functions.

The fingerprint door knob adopts an advanced FPC biometric fingerprint sensor, boasting a recognition rate of up to 98%. With just 0.3 seconds to open the door, you don't have to worry about forgetting your keys when you go out, as you can use your finger to unlock at any time.

To ensure the battery life of the indoor password lock, a battery indicator has been added to the keypad door handle. This lock requires 4*AAA batteries (not included) and has a lifespan of about 8-10 months. In the event of a dead battery and no key, you can use the charging cable into the USB port on the front of the front panel for emergency unlocking. However, this interface cannot charge the battery, and it is only used for emergency charging, so please replace the battery in time.

The biometric door lock fits most standard single-cylinder US interior doors, and the simple installation takes minutes with a screwdriver without extra drilling. It universally fits indoor and exterior wood doors with a thickness between 1-3/8" (35mm) to 2-3/16" (55mm), and the adjustable latch is 2-3/8" (60mm) or 2-3/4" (70mm). Please kindly check your front door size before purchasing, and follow the provided video if you still have any doubts.

To ensure your satisfaction, the smart bedroom door knob handles come with a 30-day refund and replacement service, as well as a 1-year product warranty. If you encounter any installation issues or missing parts, please feel free to contact our customer service support, which is available 24/7 to assist you.

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