Spectronics offers Aero-Brite universal fluorsecent leak detection dye to pinpoint the source of fuel, lubrication, and hydraulic leaks. Simply add a small anmouont of the dye to the aircraft system and let it circulate. The dye/fluid mixture will accumulate at even the smallest leak sites. Scan the area with a high-intensity UV inspection lamp and a bright green glow will show the precise location of every leak. It is formulated to work with any petroleum and synthetic-based host fluid. It will not damage the fluid's properties or any of the system's components. It can be used for both in-flight and static testing. For more information call (800) 274-8888 or visit www.spectroline.com.