Range refers to minimum through maximum pressures that can be accurately measured by a transducer. Usually transducers are selected so that system operating pressure is 50 to 60% of the transducer's maximum rated pressure. For example, a hydraulic system, normally operating in the 2500- to 3000-psi region, would usually use a 5000 psi transducer. In addition to providing a safety margin, this practice also makes a good compromise among performance characteristics.