81F Fingerprint Door Knob – Keyless Entry for Easy Access

Signstek Smart Door Knob – Fingerprint, Keypad, Key & Anti-Peeping Protection

【50 Fingerprints & 20 User Codes】Store up to 50 fingerprints and 20 personalized user codes, making it easy to manage access for family members, tenants, or staff. Add or remove users whenever needed for flexible access control.

【Easy Installation & Wide Compatibility】 Fits standard doors 1.37″–2.17″ thick with a 2-3/8″ or 2-3/4″ backset and a 2-1/8″ (54mm) bore hole. Installs in about 15 minutes using just a screwdriver.

【Flexible Auto-Lock & Passage Mode】 Set the auto-lock timer anywhere from 2–99 seconds, with a 5-second default setting. Activate Passage Mode with the two upper buttons on the interior assembly for convenient key-free entry—simply turn the exterior knob to open the door.

【Fingerprint, Keypad & Key Access】 Choose from three ways to unlock: 4–8 digit code, fingerprint, or physical key. Add random numbers around your actual code for anti-peeping protection, allowing up to 40 digits in one entry to help prevent others from seeing your password.

【Vacation Mode & Rekey】 When Vacation Mode is enabled, access is limited to the Programming Code or physical key for added control while you're away. The rekeyable cylinder can be changed to work with a new KW1 key. Rekeying requires a professional locksmith and specialized tools and is not intended as a DIY installation.

【Anti-Peeping Protection】Protect your privacy when entering the code in front of others. Simply add random digits before and after your correct password—the lock will still recognize the correct code within the sequence, helping prevent others from seeing or memorizing your password.

【Low-Battery Alert & Silent Mode】 The keypad locks for 1 minute after 5 consecutive incorrect code attempts. A low-battery alert reminds you when it’s time to replace the 9V battery. Switch to Silent Mode to turn off all keypad beeps for quiet operation.

Product Information

About Shipping and Warranty

• • Orders are typically shipped within 24 hours, with delivery estimated within 5-7 business days.
    
  • If you have any concerns, please contact us via email: signstek@163.com
  • Shop with confidence with our 30-day money-back guarantee.
  • Backed by a one-year manufacturer’s warranty for peace of mind.
  • For bulk orders, please contact us at signstek@163.com for more information.