Handheld forged note detector sl 01 this handheld forged note detector uses a uv light to check banknotes are genuine and help prevent forgery great for retail hospitality and more the handheld design features a simple operation and convenient wrist strap for portable use the black detector requires 4 x aa batteries not supplied forged note detector with convenient handheld design uv light illuminates marks on genuine banknotes great for retail hospitality and more portable design with