This high low pressure sensor 4703324 is specially matched for ZX series excavators. It monitors real-time hydraulic pressure changes of plunger pump and feeds back accurate data to stabilize machine working state. It effectively prevents pressure abnormal failure and improves overall working efficiency. Adopting pressure-resistant sensing elements and tight sealing design, it runs steadily in harsh working environments. Compliant with OEM standards, it features great compatibility, quick response and long service life for regular excavator maintenance.