Couplers & I/O modules: Item no. 750-454/025-0002-channel analog input; 4 … 20 mA; Differential input; Ext. Temperature1 of 4Color: 2-channel analog input; 4 … 20 mA; Differential input; Ext. TemperaturePlease wait ...PU (SPU): 1 PieceAdd to shopping listGenerate DatasheetCompareAdd to Watchlist 2-channel analog input; 4 … 20 mA; Differential input; Ext. TemperaturePlease wait ...PU (SPU): 1 PieceAdd to shopping listGenerate DatasheetCompareAdd to Watchlist