McMillan Co.

Model 501 FLOSWITCH
The Model 501 FLOSWITCH is ideal for applications that require alarms for low- or no-flow conditions, excessive flow, or intermittent flow rates. The switches are available in plastic or stainless-steel construction. Featuring highly precise solid- state relay outputs with setpoints as low as 13 mL/min, they provide a cost-effective replacement to non-repeatable piston-type or rotameter-based alternatives. Integrated visual indicators display current status. Units may be used with pressures up to 500 psig.

Models 104 and 107 Liquid Flo-Sensors
Offered as an electronic alternative to ball-and-tube rotameters, Models 104 and 107 Liquid Flo-Sensors precisely measure liquid flowrates as low as 13 mL/min. Stainless steel construction guarantees compatibility with virtually any chemical, including many solvents and organic compounds. An analog 0–5-VDC output and pulse output are both provided as standard features. Optional outputs include the 4–20 mA and an integrated display.