The secret to successful odor removal is in accurately locating all the odor sources. To this end CTI has designed the “Inspection Tunnel”. Now you can locate urine with a UV light in broad daylight and never miss a spot. No blackout draping of windows or waiting till dark to do the inspection. This quick and easy tool is simple, yet amazingly effective. The Tunnel blocks out ambient light leaving the carpet in the area you are inspecting shrouded in darkness leaving perfect set up to locate urine with a UV light.