A. S16-J Double-opening frameless glass door (Standard Lock)

B. K170-FJ (split main lock and secondary lock) double-opening framed glass or wooden door

C. K170/S16-J single-opening framed glass door (with metal side strips), from the outside, if the door hinge is on the left, it is left-opening; if it is on the right, it is right-opening

D. K170/S16-J Single Opening frameless glass Door (Standard lock)

E, K170-FJ (split main and secondary lock) framed glass door, the door frame is the same thickness as the door. It opens from the outside. If the door hinge is on the left, it opens from the left; if it is on the right, it opens from the right

F, K170-FJ (split) door casing is thicker than the door itself. The door casing uses side strips. It opens from the outside. If the door hinge is on the left, it is left-opening; if it is on the right, it is right-opening

G, K170/S16-J sliding glass door (with hook lock tongue and metal side strip) Please indicate the opening direction

H, K170/S16-J Double sliding glass door (with hook lock tongue)

I. Add WiFi graffiti. This function can only be purchased by buying a lock (with a 2.4-inch color screen function by default). Add "W" to the device model

J. Add the key and purchase the lock to purchase this function (backup). Add L to the device model

K. Add remote control. This function can only be purchased when buying a lock (manual door opening within 15 meters). Add Y to the device model