Shandong Ultisolar New Energy Co., Ltd

How to use the hall flow sensor?

For hall effect water flow sensor, there are usually three wires

1. red to positive, black to GND, yellow to signal.

2. power supply 4.5-18V
These are listed in the datasheet, here is more may be necessary.
You need to read the pulse signal when water flow through, and calculate the flow rate according to the datasheet formula. 
with flow rate and time, you will get total volume.
If you need finished product, we also have US208MA, US211M for your choice.

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