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17% OFF 15mA 5V Optical Infrared Water Liquid Level Sensor Control Switch Favorable Level Sensors US$9.99 US$11.99 View It

Overall:

marvin09 09/04/2018

The sensor works fine. Finding the wiring Schema was a pain. 1 White goes to 5V 2 blue connect via resistor (220R) to 5V 3 yellow is Signal (Pull down via 4k7 resistor) 4 red is GND It would be much more according to standard if Red would be 5V white 5V via resistor blue GND and Yellow Signal ... especially having red as ground is strange ...

Comments (3)

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konstill Wiredit by the comment and it works perfectly! Thank you Marvin09.
Reply 03/03/2019

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BG573255721 which range of water levels It can manage to measure ? cm or mt?
Reply 08/06/2019

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UdiYe Txfor the wiring instructions...
Got it , with no indications to the wires whatsoever
Reply 24/07/2019

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