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BSGJ - 7 ticket check false instrument is best according to the national currency, checks, drafts, invoices and other characteristics of the main security features design of multipurpose spectrum analysis of imaging system, using infrared light, purple light, bottom, magnetic detection means and sensing camera system, such as the CRT display, spectrum analysis system, etc., on the paper, the infrared characteristics of negotiable instruments, money, printing characteristics, such as magnetic ink test observation and comprehensive identification. High resolution capability. At the same time, stable performance, fast imaging. High resolution. High signal to noise ratio and high cost performance, etc.