connecting a pressure water sensor the arduino mega

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hi guys

is there how connect pressure water sensor (only 2 lines/pins) arduino mega. have tried connect 1 line/pin 5v , the  pin, don't know need to  connect pwm or need connect a0(analog)? cause sensor simple , have 2 pins/lines should need third pin plug in gnd?

it important me please can give me suggestion ? thank much!!

you should include details of sensor, ie link datasheet or @ least maker's website. "should" explain comes out wires ;)



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