Protective coatings play a critical role in preventing corrosion and extending the life of metal structures. Even the smallest pinhole or crack in a coating can lead to serious damage over time. The INSIZE 9511 Holiday Detector is designed to accurately detect such defects and ensure coating integrity before assets are put into service. What Is a Holiday Detector? A holiday detector is a specialized inspection instrument used to identify discontinuities such as pinholes, pores, cracks, or thin spots in non-conductive coatings applied over conductive surfaces. These defects, commonly known as “holidays, ” are often invisible to the naked eye but can cause corrosion and premature failure if left undetected. About INSIZE 9511 Holiday Detector The INSIZE 9511 is a high-voltage holiday detector suitable for inspecting coatings like epoxy, enamel, powder coating, rubber lining, and other protective layers. It works on the spark testing principle, where a controlled high voltage is applied to the coating surface. When a defect is present, the detector instantly triggers an audible and visual alarm, allowing inspectors to pinpoint the exact location. Key Features High-voltage spark testing for accurate defect detection Suitable for a wide range of coating thicknesses Audible and visual alerts for easy identification of holidays Portable and user-friendly design for field inspections Robust construction for industrial environments Applications The INSIZE 9511 Holiday Detector is widely used in: Pipelines and oil & gas installations Storage tanks and pressure vessels Structural steel and fabricated components Industrial coating and painting projects Corrosion protection and quality control inspections Why Choose INSIZE 9511? INSIZE is a trusted name in inspection and measuring instruments. The 9511 Holiday Detector combines reliability, accuracy, and ease of use, making it an excellent choice for coating inspectors, quality engineers, and maintenance teams who need dependable results and compliance with international inspection practices. Conclusion By using the INSIZE 9511 Holiday Detector, you can ensure coating quality, reduce the risk of corrosion, and avoid costly repairs in the future. It is an essential tool for any industry where coating performance and long-term asset protection matter.