Check the authenticity of bank notes easily and quickly with the extremely effective Banknote Check fake note detector! Double verification and control system (ultraviolet and magnetic: UV+MG). Practical and easy to use. Approx. measures: 3 x 9 x 2.5 cm. Approx. weight: 35 g. Hanging strap included. Battery-operated (4 x LR44, included). Valid for euros, pounds and dollars. Press the MG button and pass the device over the back of a bank note (over the serial number or the security thread of the central part). A beep will confirm the authenticity of the bank note. You can also verify the invisible ultraviolet marks of the note with the ultraviolet light of the device (UV button).