i am looking for anyone with slc 100s or slc 150s that they dont need i am specifically looking for the none standard expansion units i am looking to buy for cheap and have them shiped to me (shipping on me) i am kinda collecting them now cause they are fairly easy to program and i understand how they work my collection currently consists of 2 slc 100 2 slc 100 expansion units 2 slc 150 an slc 100 and held programmer and a usb adapter for computer programming i am also buying a keypad for the slc100 let me know what you have and how much