Get a guided demo that shows common workflows and troubleshooting tips for the HD-104 Wet Sponge Pinhole Leak Detector. In this video, you'll see how to properly set up and operate this high-accuracy holiday detector for identifying coating defects on conductive substrates. Watch as we demonstrate voltage selection, sponge preparation, and real-time detection of pinholes and gaps according to ASTM, ISO, and NACE standards.