Urine Finder Black Light - locate dried pet stains with the Urine Finder Black Light so that it may be completely removed. The crystalline structure of dried urine causes it to fluoresce a dull yellow color under ultraviolet (UV or "black”) light. Thus, a black light becomes a valuable tool for locating the exact stains that need to be treated.

A few notes on Black Lights:

• Incandescent bulbs that screw in to a regular lamp socket do not work; a fluorescent tube-type light is required.

• “UV” refers to a specific band of light wavelength. Generally, urine will fluoresce under any UV light – but some exact wavelengths do a better job of fluorescing urine. This product employs custom circuitry to produce the optimal light wavelength for urine fluorescence, which means you don’t have to have the room perfectly dark, or hold the light source so close to the surface. Hardware-store black lights work okay, but are harder to use effectively for these reasons.
  

• Urine is not the only substance that will fluoresce. Some soaps and detergents have components that fluoresce, even after rinsing thoroughly, as well as some fabrics and lint. These will usually fluoresce a bright white or even blue-ish hue, not the dull yellow of urine.

Familiarize yourself with your new black light:

• Use protective eyewear: Prolonged and direct exposure to UV light can be harmful to the eyes. The ideal type of protective eyewear is safety goggles that can be purchased at any local hardware store. These glasses, like most eyewear made today, filter UV rays.
  

• Take the product into the bathroom and darken the room. Inspect the toilet, especially around the seat hinges and the outside front of the toilet bowl. This will allow you to see exactly what urine looks like under black light. Even the cleanest bathroom will show glowing yellow crystals, because ordinary cleaners simply do not dissolve them.

Now you’re ready to inspect the rest of the facility. Close the curtains/blinds if necessary to make your work area easy to see.

How do you tell what’s pet urine and what’s not? The color is the first clue. After that, you’ll use common sense and sometimes your sense of smell. You probably have a good idea where the cat or dog has “gone,” or the baby or elderly family member has had an “accident.” The black light will confirm it – and indicate some spots you never guessed about! Fluorescence 5 feet high on the wall is probably not urine, but a puddle-shaped area on the floor near a cat’s litter box, or beneath the crib mattress or an incontinent family member’s favorite chair, probably IS urine.

Once you’ve located all the affected areas, you might want to mark them with a piece of masking tape or marker so you can find them when the house lights are on.