Xiaomi Sherlock S2 Smart Lock Home Keyless With smart key Fingerprint+Password
The lock is installed inside of room, instead of outside of room.
Sherlock smart lock, no need to disassemble the original lock, easy to upgrade smart lock, APP control, or smart key switch door lock
Install the Sherlock Smart Lock, don't worry about forgetting to bring the key！！
Select left open and right open please see the bottom of the details