HFS-2-02 is a series HF in-line flow monitor, a ruggedly constructed and ideal for direct measurement for a range of compatible gases, oil or water based liquids. This series is designed based on a floating orifice disk and variable area flow measurement. Flowing media forces linear motion of the orifice disk and a ring shaped magnet which ride on a tapered center shaft. The transfer magnet drives a clearly visible magnet follower located outside the flow tube, and a ring on the magnet follower indicates flow rate on the direct reading scale. Typical applications include setting pressure relief valves, fluid handling equipment, detecting low-flow rates for lubricating liquids, pulp and paper, industrial maintenance, fluid power, heating loop flow.