Ardwolf AL3 Electronic Keyless Smart Door Lock, Touchscreen Lever with Auto Lock
The way to unlock: enter your 4-8 digits pin code on the backlit
Supports prefix and suffix input: user could input before or after pin code
Reversible lever: fits both left-handed and right-handed doors. NOT WATERPROOF, guaranteed to fit on standard doors
Fit doors: Single latch door, adjustable backset 2-3/8" or 2-3/4", door thickness between 1-1/4" and 2-1/4"
Reset the lock: press and hold the reset button to set the lock back to manufacturer default status when the code doesn't work at all