Shut the door, pull down the shades and conduct your own CSI investigation…for pee. This black light will show you how much urine is actually seeped and dried into your carpet with one wave. How? The crystalline structure of dried urine causes it to fluoresce a dull yellow color under UV light. Don't worry if it looks like a violent pee scene—our Urine-Off Spray will come to the rescue.

Requires 4 AA batteries, not included. Protective eye wear recommended.