Unique ink in the Detector Pen identifies notes quickly & easily.
Genuine currency: light yellow or clear color mark
Suspect currency: Brown or Dark mark appears
Ideal for testify Bank Notes. These Pens is applied to a suspect Note, which use good ink. When applied to genuine note the ink the color will be dim yellow or clear, however a Fake Note will turn Black/Brown.
Material: glassUses: used as teaching or research tool or used for decorationProduct Features: With beautiful and unique design, there will be completely different color rendering from different angles at the same environmentNote: This product is a craft that can only be used in optical experiments and science recognition. It cannot be used in projectors and cameras.Packing List: 1 * X-Cube
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