The Setra 2091001PG1M45P1 Pressure Transducer is a precision sensor designed to measure pressure from 0 to 1 PSI and convert it into a 0.5–4.5 VDC electrical signal for system monitoring and control. Its 1/8-inch NPT connection allows secure installation in compatible pressure lines. This transducer is used in HVAC and refrigeration equipment, including air handlers, chillers, compres... https://www.partshnc.com/2091001pg1m45p1-setra-transd-0-1-18-npt-05-45vdc