Harfo K1 Fingerprint Door Lock, Keyless Entry Door Lock, Keypad Lock, Biometric Door Lock, Digital Door Lock for Home…

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【Multiple Ways to Unlock】: 4-in-1 Keyless Entry Smart Lock: Fingerprint + Password + CARD + Mechanical Key. ✅ Need 4pcs 1.5V AA dry batteries (No include) . Rechargeable batteries are not recommended, because most rechargeable battery’s voltage is 1.2V.
【Automatic Locking】: A built-in sensor detects when your door is closed and locks it automatically, keeping your home secure
【Private Mode】: HARFO smart lock provides enhanced security when you enable private lock from inside, Only admin user can access.You can protuct your private.
【New 3D Fingerprint Sensor】：Smart Lock recognizes your fingerprint in just 0.3 seconds, and unlocks your door in 1 second. Works perfect for kids and the elder.
【Door thickness range】: 1 3/8 inch to 2 3/16 inch 35mm-55mm thick. Suitable for most door thickness. Suitable for both left-handed and right-handed doors.