U.V (black light) is an ideal tool for tracking rodent urine; helping to find entrance points and runways.
Whilst invisible in normal light, urine stains on food bags, containers, floors etc is more noticeable under UV. The fresher the stain, the more the light will fluoresce.
Rodents urinate in motion so you will see their paths are visible under the torch light in droplet patterns or trails. Also, rodents have oily hairs that will show blue-white smudges under the torch.
Fresh urine will fluoresce bluish-white, whereas dry urine will show in a more yellow-white tone, which dulls with age. The pattern is important - a large area with splashing at the sides is probably not from a rodent (some cleaning products, bleaches and adhesives also fluoresce) - as rodents urinate on the move, look for drops that become smaller in a run line.
This torch will be most effective at night, or in darkness and will need to be used close to the surface (15 - 25cm) to work properly.
Includes 3 x AAA batteries.