The SMC PF2A521-N03-2 PF2A Series For Air Digital Flow Switch Remote Type Sensor Unit is a versatile and efficient solution for monitoring air flow. This unit offers both integrated and separate monitor types, providing flexibility for various applications. It features switch output, accumulated pulse output, and analog output, allowing for comprehensive data collection and analysis. The sensor unit is capable of toggling between cumulative and instantaneous flow measurements, ensuring precise monitoring. With an IP65 rating, it is protected against dust and water, making it suitable for challenging environments. Additionally, the 4-channel Flow Monitor allows for the simultaneous monitoring of four independent flow rate ranges with a single controller, enhancing operational efficiency and control.