Duelco DSC-MR2Product ID: 1103440DSC MR2 is an output extension unit. DSC MR2 give you the advantage of safety relay outputs.PDF files: Duelco DSC-MR2-MR4 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