Smart Door Locks – 4-in-1 Fingerprint Keypad Knob, App & Key

Product Specs & Ingredients

Model & Variants

• Product: Smart Door Locks – Fingerprint Keypad Knob (Round Ball)
• Color Options: Matte Black / Brown (detachable silicone handle sleeves)
• Use: Interior / Exterior doors for homes, rentals, offices, apartments, hotels, garages, dorms

Access Methods (4-in-1)

• Fingerprint: Capacitive biometric sensor
• PIN / Keypad: Touchscreen anti-peeping password input
• Mechanical Keys: 2 keys included; works with most mechanical cylinders
• App Control: Bluetooth (effective range ≈ 5 m). Wi-Fi remote unlocking not supported

Performance & Capacity

• Recognition Speed: ≈ 0.25 s fingerprint identification
• Door Opening: ≈ 1 s after verification
• User Slots: Up to 3 Administrators
• Stored Credentials: 30 fingerprints + 15 standard PINs + 10 one-time temporary PINs
• Auto-Lock: Supported (configurable)
• Silent Mode: Supported (extends battery life & keeps quiet)

Power & Battery

• Battery Type: 4 × AAA (not included)
• Typical Life: ≈ 12 months under normal use
• Low-Battery Alert: When < 4.8 V, after wake the SMART button red LED flashes 7× with beeps (replace batteries promptly)

Modes & Security

• Vacation Mode: Admin-only unlock for long absences
• Quick Unlock: Optional; any fingerprint can unlock (use with caution)
• Anti-Peeping PIN: Mask digits by entering random numbers before/after the true PIN
• Build: Solid-core knob; premium metal construction for anti-pry & durability

Door Compatibility & Installation

• Door Thickness: 1-3/8″ – 2-1/2″ (≈ 35–64 mm)
• Backset / Latch: Adjustable 2-3/8″ or 2-3/4″ (60 mm / 70 mm)
• Door Types: Screen, wooden, and metal doors
• Handing: Left-handed / Right-handed universal
• DIY Install: Screwdriver-only; typical 15-minute setup

Materials & Finish

• Body / Core: Premium metal, solid core structure
• Finish: Matte Black or Brown silicone sleeve for comfortable grip & style matching

Measurements

• Item Dimensions: 7.8 × 4.88 × 2.99 inches (approx.)
• Connectivity Protocol: Bluetooth

What’s in the Box

• Smart fingerprint keypad door knob (main unit)
• Adjustable latch & strike plate set
• 2 × mechanical keys
• Mounting screws & accessories kit
• User manual / quick start guide

Care & Maintenance

• Wipe with a dry or slightly damp cloth; avoid harsh chemicals
• Keep the battery compartment dry; replace batteries when low-power alert appears

Important Notes

• For long trips, switch on Vacation Mode, bring a physical key, and replace batteries in advance
• Bluetooth app works within ≈ 5 m; remote Wi-Fi unlocking is not available