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ICP DAS USA I-7513 Industrial 3-Way Isolated RS-485 Hub/Splitter with Din Rail Mount. Extends RS-485 Network up to 4000 feet.: Amazon.com: Industrial & Scientific
Sean Conway on Twitter: "40 years ago today: May 18, 1980, Mount Saint Helens erupted not from its peak but from its side. Volcanic violence devastated the landscape, unleashing 8 times more
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