FM4 Flow Meter, whose body is made of alloy aluminum, with a structure of stainless steel bush and a four-piston Positive Displacement design. It features a novel appearance, small size, high reliability, and good wearability. The FM4 Flow Meter comes with a built-in intelligent pulser, with 60 pulses or 100 pulses available as options; there is also an FM4 Flow Meter variant without a pulser.
