This a property marker pen combined with a UV lamp which enables an invisible mark on all property. Ideal for marking phones, MP3 players, lap tops etc. It can also be used to mark household items such as antiques, televisions etc with post codes or phone numbers. Police routinely check stolen property with UV lamps. The UV lamp can also be used to check for fake bank notes, traveller’s cheques, credit cards and stamps. The ultraviolet lamp detects special marks made with fluorescent ink which are invisible in normal light
