Water Flow Sensor Flowmeter 0.3-6L/min

Measures how much water passes through it using a small turbine and a Hall effect sensor, emitting a pulse per rotation. Count pulses over time for flow rate, or count them cumulatively for total volume consumed — which is how you build a water meter, an irrigation controller or an automatic filling system. Connect the output to an interrupt pin so no pulses are missed. Calibrate against a measured container, since the pulses-per-litre figure varies between units. Measures both flow rate and cumulative volume; Simple pulse output suits interrupt counting; Threaded fittings for straightforward plumbing; Ideal for irrigation and automatic filling systems