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T.K. builds an Optical liquid level sensorSometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may ...
Richmond installs new water level detection systems to help drivers stay safe when roads flood by: Ryan Nadeau Posted: Jul 20, 2023 / 04:53 PM EDT Updated: Dec 27, 2023 / 03:56 PM EST ...
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