This is a legacy product. Please contact us for the latest version.sales@ocaire.com, DIGITAL FLOW SW, REMOTE SENSOR, INSTRUMENTATION, IF/PFA FLOW SWITCH, FA, IF/PFA 1/2 INCH PT VERSION, .87911 lb, ModelMeasured fluidDetection typeRated flow rangeOperating pressure rangeProof pressureOperating fluid temperatureLinearity Note 1)Repeatability Note 1)Temperature characteristicsOutput