Click to expand Tap to zoom S1-ISO-BUS | Harness with Y Extension by Sensor-1 Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $660.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The new S1-ISO-BUS is a harness that features a "Y" extension for the purpose of running multiple ISO implements simultaneously. 4 feet total length.