G1/2" Brass Hall Flow Rate Meter NTC Temperature Measure Water Flow Sensor Meter Other Mechanical Power Transmission Super bright and tiny LED

Super bright and tiny LED lights on long thin copper wire

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G1/2" Brass Hall Flow Rate Meter NTC Temperature Measure Water Flow Sensor Meter Other Mechanical Power Transmission Super bright and tiny LEDITEM NAME: G1 2" Brass Hall Flow Rate Meter NTC Temperature Measure Water Flow Sensor Meter. The flow sensor is suitable to detect the flow in water dispenser or coffee machine. Its speed changes with different rate of flow. Then the magnetic rotor make reaction to Hall sensor,the hall effect sensor outputs the corresponding pulse signal.