SMC PFM711-N02-B-M Flow Switch 24VDC

The SMC PFM711-N02-B-M is a 24 V DC flow switch that detects the presence or absence of air flow in pneumatic lines and outputs a signal to control systems. In automation and process control, this type of device is used to verify that compressed air is flowing where it should, providing a reliable basis for safe starts, system diagnostics, and straightforward interlocks without invasive changes to the plumbing. The N02-B-M variant identifies a specific configuration within SMC’s PFM711 flow-switch family, reassuring compatibility with other SMC components and the common electrical interfaces used in industrial controllers. With a 24 V DC operating supply, the PFM711-N02-B-M is designed to integrate with standard automation electronics and PLC input modules, offering a simple, low-friction path to monitor airflow and trigger upstream or downstream control logic when flow conditions change.