money checker, portable,4w,6v,DC power,365nm wavlength,CE ROHS,uv bill detector uv banknote detector uv cash detector uv bill detectorUsage:to test money, all kinds of money in the world.to test the cheque checkto test the stampto test the ticketto test the credit cardto find the invisible sources of pet's urine, odor and other biological contaminants, such as feces, urine,blood,saliva,vomit, ...