Poop-Off Pet Urine Locator LED/UV Black Light This black light is tiny but effectively reveals pet urine deposits Using a black light in a darkened room will make any urine stain glow You will know where to clean and not waste liquids Tiny light is at the correct wavelength to see invisible urine from mice to Elephants Can be used indoors or outdoors This black light is tiny but effectively reveals pet urine deposits Using a black light in a darkened room will make any urine stain glow You will know where to clean and not waste liquids Tiny light is at the correct wavelength to see invisible urine from mice to Elephants Can be used indoors or outdoors Using a black light in a darkened room will make any urine stain glow You will know where to clean and not waste liquids Tiny light is at the correct wavelength to see invisible urine from mice to Elephants Can be used indoors or outdoors