A device assembly designed to assess the performance of infusion pumps by accurately measuring, evaluating, displaying, and/or recording a set of pump variables (typically output flow, volume delivery, and occlusion pressure needed to activate the pump alarms). The assembly usually consists of a computerized electronic unit, measuring devices (e.g., volume, flow, pressure, time), a display, and a recorder. It is used to test general-purpose, syringe, and/or ambulatory infusion pumps and may be operated manually or user programmable to run automatic test protocols. This device is intended to be used by a professional in a professional setting (e.g., clinical engineering).