This item was removed from a Right Hand door in working order because the new occupant did not want it. It has been reset to factory default and works well.
This lock CANNOT be used as is on a left hand door without a left hand cam that IS NOT INCLUDED. The cams for left and right can be found online.
This lock uses the Trilogy S6170 battery pack containing 2 - # 123 lithium batteries
You will have to download instructions for installation and programming as there are none with the lock.