Features 1??Keyless entry smart biometric lock, 4 unlocking methods: fingerprint, password, Bluetooth APP, temporary password. 2??Semiconductor fingerprint sensor, fast fingerprint recognition, 360 ?? self?learning memory algorithm, more accurate. 3??Concealed password handle, can set a temporary dynamic password. If remote unlocking is required, one or a group of dynamic passwords can be set. After unlocking, the password automatically becomes invalid. 4??When the wrong password is entered 5 times, the smart lock automatically locks for 5 minutes; any number of passwords can be entered before the correct password, and only the last few digits are the correct password to unlock. 5??The user unlocks by the fingerprint and APP or password, and the administrator can find the record in the unlock record on the APP. 6??USB charging port, intelligent charging, simple and convenient for using. 7??With low voltage alarm, when the battery power is low, the smart lock will emit a low battery alarm. 8??It can replace the standard single?cylinder American door lock, suitable for inside opening door, and the door thickness is suitable for 35?55mm. Specification Condition: Item Type: Door Handle Lock Material: Zinc Alloy Fingerprint Capacity: 50 Groups Power Supply: 1 x 3.7V 14500 Rechargeable Battery (Built-in) Emergency Power Supply: USB Charging Recognition Speed: 0.5s Fingerprint Sensor: Semiconductor Service Life:> 200,000 Times Unlocking Method: Fingerprint / Password / App / Temporary Password Applicable Door Thickness: Approx. 35-55mm/1.4-2.2in Package List 1 x Lock Front Panel 1 x Lock Rear Panel 1 x Single Latch 1 x Lock Box 1 x Buckle 1 x Screw Bag 1 x Instruction 1 x Mounting Kit