Ultraloq UL1/Combo smart lock fit the right unlock and left unlock. After installation or change the new battery, to make sure the lock's direction is correct, please have to calibrate.
Step 1. Choose the correct direction when you install the UL1. For left unlock, the arrow is faced down. For right unlock, the arrow is faced up.
Step 2. Keep pushing down the inside handle of UL1.
Step 3. Use a paperclip to push the Reset hole around one second until you hear one "beep" from UL1.
Step 4. Calibration is done.