G1/2 Hall Effect Liquid Water Flow Sensor Switch Counter 1-25L/min Black

G1/2 Brass Water Flow Sensor Hall Effect Turbine Meter 1-25L/min YF-B1/B2/B3

G1/2 Hall Effect Liquid Water Flow Sensor Switch DC 5V 1-30L/min Clear YF-S201C

G1/2" Hall Effect Fluid Water Flow Sensor Switch Flowmeter Meter 1-30L/min

G1/4 Hall Effect Liquid Water Flow Switch Flowmeter Counter 1-25L/min

G1/2 Hall Effect Liquid Water Flow Sensor Switch DC 5V 1-30L/min Clear YF-S201C

G1/2 Hall Effect Liquid Water Flow Sensor Switch Meter Counter 1-25L/min YF-B7