Specifically designed to measure coatings and linings on concrete and other nonmetal substrates, the palm-sized PosiTector 200 is an easy to use gauge for nondestructive measurement. It is available with both standard or advanced features and your choice of two measuring ranges. Features include extended range probes, faster measuring speed, large impact-resistant Lexan display, IP5X ingress protection, and a protective rubber holster. DeFelsko Corp. 800-448-3835. www.defelsko.com