Discount New A-K › AO845A Image 1 of 3 Image 2 of 3 Image 3 of 3 AO845A $1,275.00 ABBS800I/O 4..20mA, 12bit, RLmax 750 ohm. Single or redundant. Loop supervised DI function. Alt. Model Number: 3BSE045584R1 Quantity: Add To Cart Added! ABBS800I/O 4..20mA, 12bit, RLmax 750 ohm. Single or redundant. Loop supervised DI function. Alt. Model Number: 3BSE045584R1