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Instrument and meter
TR-106S residual chlorine total chlorine analyzer (economical type)
TR-718 Total Copper and Copper Ion Analyzer (with printer)
TR-105 Hexavalent Chromium Tester (with printer)
TR-205 Total Chromium and Chromium Ion Analyzer (with printer)
TR-208B portable COD ammonia nitrogen analyzer
TR-308 COD ammonia nitrogen total phosphorus analyzer (with printer)
Successful operation!
