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Infrared tester can be made into pens, key chains, and other objects. Such testers can be used as portable note-checking device and have the authoritativeness for checking up Renminbi.
ClassⅠTest (Infrared Test)
Infrared Testing Pen and Key Chain

Digital detector can read spectral ciphers hidden in marked places. Such ciphers are like the fingerprints or DNA of human beings and have the quality of uniqueness. This digital detector can be used for ultimate anti-counterfeit testing of RMB.
ClassⅡ Test (Digital Detector)
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