Pro-Nu Pet Urine Detector UV Flashlight 12 led 380-385nm - Best Wavelength to Detect Pet Stains, Spot Scorpions, Verify Currency. Perfect for visible dry dog, cat and rodent urine stains that are invisible to the naked eye. Our 21 LED design is much more powerful and bright than the 9 or 12 LED designs found elsewhere. No need to steam clean the entire carpet! Now you can pinpoint problem areas with ease - NO NEED FOR PROFESSIONALS!- you will save a lot of money. Use your flashlight again and again for an unbeatable price The UV light reveals hidden anti-counterfeit symbols to ensure the Counterfeit Protection Inspect hotel rooms, detect scorpions at night, and to show UV dyes when looking for fuel or gas leaks 3 x (AAA) Batteries Included