CO cable for EasySim Educational Patient Simulator: ES GE to 4-pin CO cable (GE CUSTOM). Connects the EasySim directly to the GE CO inputs for the purpose of eliminating the need to attach a BT catheter, standard temp probe or enter injectate temperature or varying Computational Constant (CC) values on the VS Monitor. It has an IT (Injectate Temperature) of 25 degrees and a CC (Computational Constant) of .500.