Hall Effect Sensor/Flow Meter 1.We specialize in kinds of sensors. 2. ... services. 3.CE,RoHS approve Hall Effect Sensor/Flow Meter Flow Switch/Sensor Series(CE,RoHS Certification approved)Operating ... detect water flow. It is compact sized with low starting level, featuring in stable performance, accurate measurement, acute reaction,convenient ... More styles of this proudct: Hall Effect Sensor/Flow Meter