Poop Off's LED Pet Urine Locator mini light clearly reveals urine, feces and cat spray invisible to the naked eye. Works on carpet, flooring, concrete, walls, mattresses and furniture. Using a blacklight in a darkened room will make any urine stain glow.
Why use a blacklight? This blacklight is tiny, but effectively reveals pet urine deposits. You'll quickly discover urine deposits in areas you thought your pet would never go. You'll also be able to spot old urine deposits that may be the reason you have odors or your pet keeps urinating in a particular area.