In addition to a fluorescent oil dye for the detection of synthetic and petroleum-based fluids, the Spectroline OPK-340 industrial leak detection kit
contains a 16-ounce, twin-neck bottle of WD-802 fluorescent water dye for detecting leaks in all types of water-based systems. When a leaking industrial system
such as an engine, compressor or piece of hydraulic equipment is scanned with the cordless Optimax 3000 blue-light LED flashlight, both dyes glow brightly, locating the precise source of the leak. The flashlight, powered by a rechargeable NiMH battery, has a life of 50,000 hours.