Profile: Flow Network specializes in flow sensing products for liquid and air flow. We provide liquid flow switches with no moving parts for monitoring flow of water, oil, chemicals, and other media. In-line flow switch is a precise, metering flow switch with adjustable range and set-point for industrial applications. Our flow transmitters provide a 4-20 mA DC signal output for a specified flow range. This output can be used with PLC's, recorders, indicators, and other devices for monitoring flow rates.