Ground Shipping Only; for shipping outside the United States, please call (773) 529-2779.
This detection spray is simply sprayed on any surface leaving an invisible film which when touched is immediately transferred to the hand, clothing, etc. Once it touches the skin, it immediately causes a bluish stain to appear with an UV violet light.
It is excellent for large and small objects. The spray is highly fluorescent when exposed to UV illumination, but is invisible to the naked eye. Long lasting 6 ounce can for many applications.
The powder used in clue spray is responsive to long wave ultraviolet light (395nm). It remits visible light at 540nm, and is 90% responsive at this peak wavelength. | 
