Intelligent Knob Lock Bedroom Indoor Smart Door Handle Lock MQ-01

・[4 Unlocking Methods]: The Smart fingerprint Door LOCK Knob four unlocking methods: fingerprint, passcode (via the Tuya Smart app), physical key, and app control. This makes the fingerprint door lock suitable for various scenarios—perfectly compatible from bedroom doors to entryways ・[Smart Tuya App Control]: Seamless User Management and App: The Smart Living app controls your bedroom door lock. Manage up to 50 fingerprints and passcodes, generate temporary codes for guests, and easily set permanent access for family members or service providers. ・[Advanced Fingerprint Technology]: This fingerprint door lock adopts advanced biometric fingerprint sensor, which improves the accuracy and sensitivity of fingerprint recognition, only 0.3 seconds to recognize fingerprints, 1 second to unlock the door easily ・[Extended Battery Life]: The fingerprint door lock knob features a Type-C port for emergency charging, ensuring you can always access your home—even during power outages. It supports 20,000 unlock cycles or over 200 days of battery life (actual lifespan varies based on usage frequency). The handle also offers low-battery alerts via the companion app ・[Easy Installation]: This smart door handle requires no complex tools or expertise, and no additional drilling. No locksmith assistance needed. The handle can be flipped left or right to support right- or left-opening doors. When installing interior handles, position the “UP” markings on both interior and exterior handles at the top to ensure secure mounting. Verify the door spindle is installed vertically. This fingerprint door lock is compatible with standard US door bodies, with a back-to-back door frame distance of 2-3/8 inches or 2-3/4 inches, and door thickness ranging from 1-3/8 inches to 2-1/8 inches.