Smart Fingerprint Door Lock Knob, Biometric Keyless Entry Bedroom Handle

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• 5-IN-1 SMART UNLOCKING & APP CONTROL: Experience ultimate convenience with 5 unlocking methods: Smart App, rapid biometric fingerprint, anti-peeping keypad passcode, IC card, and mechanical backup keys. Effortlessly generate temporary or periodic passcodes via the App for guests, cleaners, or Airbnb renters, and monitor real-time unlock history on your smartphone for enhanced home security.
• RAPID BIOMETRIC SENSOR & DUMMY PASSCODE: Equipped with an upgraded 360-degree biometric fingerprint sensor, this smart handle lock recognizes your print in just 0.3 seconds. Supports up to 300 user profiles across fingerprints, passcodes, and IC cards. Features a 26-digit anti-peeping dummy password system—enter random digits before or after your correct PIN to protect your privacy from prying eyes.
• AUTO LOCKING & PASSAGE MODE FLEXIBILITY: Never worry about forgetting to lock the door; the system automatically locks 5 seconds after unlocking for complete peace of mind. Hosting a party or running a busy office? Easily switch to Passage Mode with a single press on the back handle button for free entry. Includes 4 adjustable volume levels with a Mute setting for quiet night access.
• EASY DIY INSTALLATION & REVERSIBLE LEVER: Replaces standard US door handles in minutes using only a screwdriver—no extra drilling required. The 180-degree reversible handle design seamlessly fits both left-handed and right-handed doors. Fully compatible with door thicknesses ranging from 35mm to 50mm (1-3/8" to 2.0") and adjustable backset latches of 60mm or 70mm (2-3/8" or 2-3/4").
• LOW POWER ALERT & EMERGENCY POWER INTAKE: Powered by 4 AAA alkaline batteries (not included) with long-lasting standby performance. The lock issues a flashing red light alert when battery voltage drops below 4.8V. Includes 2 mechanical keys and an external Type-C port for emergency power jump-starting. (Note: The Type-C port functions strictly as an emergency power supply and cannot be used for battery charging.)