Charleswater is an electrostatic discharge (ESD) control product manufacturer. It was founded in West Newton, Massachusetts. However, after it merged into Desco Industries in 1990, it became the leading brand in the United Kingdom. As a subsidiary of Desco Industries, Inc., in California, Charleswater is in charge of marketing ESD control products and electronic test equipment throughout Europe. Charleswater has an extensive library of ESD resources available to the public on its website. The test equipment they make includes resistivity meters and data acquisition (DAQ) instruments. To find used and refurbished equipment from this brand at discounted prices, visit ValueTronics.com.