McDonnell & Miller FS4-3T1-3 Flow Switch is a dual‑voltage flow‑sensing device designed to monitor fluid flow and trigger a control signal when flow conditions change. The unit operates at 115/230 VAC, is rated for up to 160 psi, and specifies a flow rate of 16.62 IPM. Use this model in systems that require reliable flow monitoring and a defined switch action to protect equipment or control logic from inadequate flow.
