Duelco DSC-MI8Product ID: 1103420DSC MI8 is an input extension unit. DSC MI8 gives you the advantage of additional 8 digital inputs.PDF files: Duelco DSC-MI8-MI16 data sheetDuelco Safety Controller manualDuelco DSC-CSU manualDuelco DSC-Expans modules manualDuelco DSC-Fieldbus manualDuelco DSC-MCM manualDuelco DSC-MCT manualDuelco DSC-MSC manualDuelco DSC-MV manual