	Hall Water Flow Sensor Flowmeter Water Control 1-30L/min 2.0MPa SG$9.70
Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse Signal. [Product Details...]

	Liquid Level Sensor SG$59.50
The eTape Liquid Level Sensor from Milone Technologies is a great way to measure the level of a liquid. It has a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic co [Product Details...]