Setra Systems offers the Model 231 Multi-Sense wet-to-wet, differential pressure transducer, suitable for monitoring control pump differential pressures; chiller or boiler differential pressure drops; and flow measurement of gasses or liquids. The single unit design reduces costs by providing users with field-selectable features such as switch-selectable pressure ranges, selectable analog outputs, and unidirectional and bidirectional ranging. An optional LCD display is available for reporting range and output status, and jumpers provide additional features including port swapping. Model 231 is offered in three versions, each with four unidirectional pressure ranges and four bidirectional pressure ranges. The MS1 has ranges from 5 to 50 psi (0.3 to 3.4 bar), the MS2 from 10 to 100 psi (0.7 to 6.9 bar), and the MS3 from 25 to 250 psi (1.7 to 17.2 bar).