BDI Smart Knob Biometric Door Lock – 3 Ways to Unlock (Fingerprint/APP/Key) for Home Security

Product Description

Upgrade your home security with this smart fingerprint door knob lock, designed to replace 99.9% of standard ball-style door locks. Perfect for steel doors, composite doors, and wooden doors, this lock offers a seamless blend of convenience and protection.

Experience lightning-fast access with advanced biometric recognition. The high-precision fingerprint sensor unlocks in under 0.3 seconds with a 99.99% recognition rate and an error rate of less than 0.01%. Register up to 10 users and store 100 fingerprints – ideal for family members.

Three convenient unlocking methods give you flexibility for any situation. Use your fingerprint for daily access, unlock remotely via the mobile APP (Bluetooth compatible), or use the mechanical key as a backup. The emergency USB port allows for temporary power if batteries die.

Powered by 4 AAA batteries (not included), installation is simple and automatic with just a screwdriver. The lock is reversible for left or right-handed doors. Compatible with door thicknesses of 38mm–50mm (1.5–2 inches) and adjustable for 60/70mm lock spacing.

Perfect for bedrooms, offices, or front doors – enjoy keyless convenience without compromising security.

Key Features

• 3 Ways to Unlock – Fingerprint, mobile APP (Bluetooth), and mechanical key

• Fast Biometric Recognition – Unlocks in under 0.3 seconds with 99.99% recognition rate

• High-Precision Sensor – 500 DPI resolution with less than 0.01% error rate

• Store 100 Fingerprints – Supports up to 10 users

• Wide Door Compatibility – Replaces 99.9% of standard ball-style door locks; works on steel, composite, and wooden doors

• Emergency USB Port – Temporary power for dead battery situations

• Easy Installation – Automatic recognition; installs with just a screwdriver; left/right reversible

• Adjustable Fit – Suitable door thickness: 38mm–50mm (1.5–2 inches); adjustable lock spacing 60/70mm

• Power Supply – 4 × AAA batteries (batteries not included)

Packaging:

• 1 x Smart Knob Door Lock
• 1 x Packaging Box
• 1 x Lock Bolt
• 1 x Lock Plate
• 2 x Screws
• 1 x Hole Diagram
• 1 x User Manual
• 2 x Physical Keys
  

⚠Note: The shape of the key is subject to the actual object