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colour matching tests
Built-in operating buzzer
Interface: Digital
Detection range is approximately 3-30cm
Water Flow Sensor (FS300A) Humidity colour matching testsIntroduction: A G3 4" water flow sensor for providing more chooice of water flow sensors . Water flow sensor consists of magnetic core, rotating impeller, external casing and sensor and a hall effect sensor. When water flows through the rotor, rotor rolls, it activates the magnetic core to trigger switch action speed changes with different rate of flow. The hall effect sensor outputs the corresponding pulse signals, users can get the flow speed via
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