1.Wide application-- For home or hotel hygiene control, to detect urine stains on pets, clothes, carpets and other stains on furniture. Look for scorpions in the dark. Identify currency, ry, ID cards, passports..2.SAFE USE--Using UV light, you can easily see fluorescent substances in baby clothes and cosmetics. If these objects do not contain fluorescent agents, the light turns purple; however, when these elements contain fluorescence, the light turns blue.3.Multifunctional and Battery Powered--The best choice for fluorescent agent and security code detection, a good helper for housework (dog, cat, rodent stains), powered by 1 AA battery (included).4.Compact and Set for All Surfaces--Lightweight and convenient. Easily fits into pockets, backpacks, toolboxes and your car - saves space. It is suitable for various surfaces in living rooms, kitchens, bathrooms, bedrooms, garages and cars. Point out nasty places hidden around you anytime, anywhere.5.Focus Adjustable and High Quality Design--Zoom in/Zoom out to adjust suitable light range. Zoom in on the beam to circle suspicious areas and zoom out to mark your pet's urine. The body is made of high-quality aluminum alloy, which is durable.