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12V DC 1/2 inch Electric Solenoid Water Air Valve Switch (Normally Closed)
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YF-S401 Water Flow Sensor
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The sensor has a 7mm coupling on both sides and is therefore easy to connect to?a 6mm hose.
The output of the sensor gives 98 pulses?per second with a duty cycle of approximately 50% for each liter of fluid passing through per minute: Q [L/min] = fpulse?[Hz]/98.
