Smart Wireless Door Lock-Black

Smart Wireless Door Lock- You can replace your existing knobs with Smart locks.

– Access by PIN. APP, fingerprint, and Mechanical key.
– Zinc alloy case
– With Tuya Bluetooth, 100 mobile users
-255 users (100 fingerprint + 155 PIN)
– PIN length: 4~6 digits
– With a USB port for emergency power
– With a Backup mechanical key for emergency override
– Require 4 x AAA battery