Model No. application Illustration operation Outside / Inside S-990 S-880 L-880 L-990 S-1100 R-60 R-70 R-1000 L-1000 KS-1500 Entrance Lock ■ Pushing inside knob button locks outside knob ■ turning inside knob or operating key release outside knob S-991 S-881 L-881 L-991 S-1101 R-60/71 L-661 R-1001 L-1001 KS-1501 Privacy Lock ■ Latch bolt operated by knob from either side ■ Outside knob is locked by pushing inside knob button ■ and unlocked by coin for emergency realease at outside S-992 S-882 L-882 L-992 Patio Lock ■ Dead locking latch operated by knob from either side ■ Outside knob is locked by push button at inside S-993 S-883 L-883 L-993 S-1103 R-63/73 L-663 R-1003 L-1003KS-1503 Passage Latch ■ Latch bolt operated by knob from either side at all times S-993D S-883D L-883D L-993D S-1103S R-63D/73D L-663D R-1003D L-1003D KS-1503D Dummy Trim ■ Both side is dummy knob S-995 S-885 L-885 L-995 R-65/75 L-665 R-1005 L-1005 Store room Lock ■ Outside knob is always locked and need key to open(operation angle 60') ■ Turning inside knob can realease locking S-996 S-886 L-886 L-996 Classroom Lock ■ Latch bolt operated at either side knob ■ Can locking at out side using key ■ Always can realease locking at inside S-997 S-887 L-887 L-997 Communicating Lock ■ Latch bolt operated at either side knob ■ Can locking at outside, in side or both side by key S-998 S-888 L-888 L-998 Store Lock ■ Latch bolt operated at either side knob ■ Can locking or realease at any side by key S-999 S-889 S-1109 KS-1509 L-889 L-999 R-1009 L-1000 Asylum Lock ■ Always locked both side and need key to open