Couplers & I/O modules: Item no. 750-4334-channel digital input; 24 VDC; 0.2 ms; 2-conductor connection1 of 4Color: Item no. 750-433 4-channel digital input; 24 VDC; 0.2 ms; 2-conductor connection LoginPlease wait ...PU (SPU): 1 PieceAdd to shopping cartGenerate DatasheetCompareAdd to WatchlistFind distributorsConfigureItem no. 750-433 4-channel digital input; 24 VDC; 0.2 ms; 2-conductor connection LoginPlease wait ...PU (SPU): 1 PieceAdd to shopping cartGenerate DatasheetCompareAdd to WatchlistFind distributorsConfigure