Setra 231G-MS2-2F-D Wet-to-Wet Differential Pressure Transducer with Display is a precision sensing device designed to measure differential pressure between two liquid media in HVAC and hydronic systems. It works by continuously monitoring pressure differences and converting them into accurate electrical output signals, while the integrated display provides real-time pressure readings... https://www.partshnc.com/231g-ms2-2f-d-setra-wettowet-transducer-wdisplay