YF-S401 3.5MM Water Flow Sensor
The YF-S401 3.5MM Water Flow Sensor with a plastic valve body, water rotor, and hall effect sensor. This device detects changes in the rate of flow based on the speed of the internal rotator. It then outputs a pulse signal through the hall effect sensor. This sensor can be used with laser cutters or CNC machines to accurately measure and monitor the amount of water flowing through the laser tube or spindle for cooling purposes.
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