<http://schema.org/description>
"Walchem offers Opti-Check, a handheld fluorometer from Turner Designs designed to measure and control the concentration of scale of corrosion inhibitors in cooling tower and boiler applications."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/products/walchem-fluorometer-controls-water-systems-concentrations>