DeFelsko, a leading U.S. manufacturer of coating thickness gages and inspection instruments, proudly manufactures the PosiTector and PosiTest brand of instruments including the PosiTector series of interchangeable probes for measuring coating thickness, surface profile, environmental conditions, salt contamination, hardness, gloss, and ultrasonic wall thickness. Products include the PosiTector 6000 series of coating thickness gages for all metal substrates and the PosiTest HHD series of high voltage holiday detectors for detecting holidays, pinholes, and other discontinuities.