Does a thirty year old Choulin Spectrometer work?

No. As technology continues to advance, so does technology in the medical and healthcare fields. The technology and principles used in the Zhoulin Spectrum Spectrometer of thirty years ago may be outdated and not comparable to modern technology. Secondly, after thirty years, the parts and components of the Choulin Spectrum Analyzer may be subject to wear and tear, aging, and other problems, leading to a decrease in the accuracy of the test results. This may affect the user's judgment of his/her own health condition, thus affecting the effectiveness of treatment and health care. Moreover, thirty-year-old electronic products may have safety hazards, such as aging circuits and deterioration of insulation properties, which may pose threats to the safety of users. Therefore, thirty years ago Zhoulin Spectrum Spectrometer can not be used.