SmarDeer Fingerprint lock for Tuya Bluetooth smart lock Keyless entry Biometric Fingerprint Type-C and mechanical key unlockThe digital electronic lock has a built-in rechargeable lithium battery. The battery life can reach 6- months.Compatible with Tuya / Smart Life app for remote control, temporary password authorization, and unlock record viewing.Tuya smart gateway required for remote unlocking (sold separately).The spherical fingerprint lock has a built-in biometric fingerprint sensor, which has fast recognition speed and high recognition degree. Support 20 fingerprint IDs to unlockTuya smart fingerprint lock supports mechanical key unlocking (old-fashioned unlocking method), and can be unlocked with a key when the door lock is out of powerThe door lock supports three locking modes: access mode, normal mode, and safety lock mode.You only need to lightly rotate the door lock knob to change the locking mode.The electronic lock will automatically lock after you close the door, so you no longer have to worry about forgetting to lock the door.The fingerprint door lock has a built-in Type-C emergency power charging port. When the door lock is out of power, you can provide power to unlock the door lock through the power bank.Door lock configuration 60-70mm adjustable Single Latch. Helps you easily replace old locks without drilling holes.Fingerprint locks are used for doors with a thickness of 35-55mm, if your door thickness is greater than 55mm, please contact us.Door locks are suitable for various wooden doors in hotels, apartments, and homes