4-in-1 Smart Fingerprint Door Lock with App & Passcode

Keyless Access for Interior DoorsUpgrade an interior door with a compact smart lock that combines four convenient access methods in one door knob. Unlock with your fingerprint, a passcode, the Tuya mobile app or the included mechanical keys.Designed for compatible U.S.-style interior doors, this electronic knob lock is made from aluminum alloy and includes Bluetooth app control, fingerprint management, access records and silent mode. Why You’ll Love It 4-in-1 Unlocking — Fingerprint, passcode, Tuya app and mechanical key access. Fingerprint Access — Supplier imagery states support for up to 30 fingerprint sets with 0.1-second recognition. App Smart Control — Use the Tuya app to manage users, set fingerprints, review access records and enable silent mode. Bluetooth Connectivity — Connects to the app through Bluetooth. Type-C Emergency Power — Emergency power interface provides backup access if the batteries are depleted. Battery Powered — Requires 4 AAA alkaline batteries, not included. Mechanical Keys Included — Two physical keys are shown with the lock for backup entry. Interior Door Use — Intended for compatible indoor doors. DetailsDoor Compatibility Door thickness: 35–50 mm Supplier installation image shows a 54 mm hole diameter Backset shown: 60 mm or 70 mm Compatible with the chiseled latch configuration shown in the supplier image Material: Aluminum alloyColor: BlackApp: TuyaConnection: BluetoothModel: D2Installation note: Measure your door thickness, bore hole, backset and latch style before ordering to confirm compatibility. ShippingFree shipping. See our Shipping Information for delivery details. Eligible items may be returned within 30 days of delivery, subject to our Returns & Refunds Policy.