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    TONGAO TR-4ZH Portable STIP-scan imported cold light source digestion Colorimetric integrated tube
    TONGAO TR-4ZH Portable STIP-scan imported cold light source digestion Colorimetric integrated tube
    $4721.00
    TONGAO TR-105H Hexavalent Chromium Tester, Water Quality Detection Diphenylcarbazide Spectrophotometric method, spec-trophotometry
    TONGAO TR-105H Hexavalent Chromium Tester, Water Quality Detection Diphenylcarbazide Spectrophotometric method, spec-trophotometry
    $816.00
    TONGAO TR 6900DZ Benchtop STIP-scan Digestion Colorimetric Multi-ParaMeter Determination
    TONGAO TR 6900DZ Benchtop STIP-scan Digestion Colorimetric Multi-ParaMeter Determination
    $4882.00
    TONGAO TR-900H Multi-ParaMeter Water Quality Analyzer Imported cold light source digestion Colorimetric integrated tube
    TONGAO TR-900H Multi-ParaMeter Water Quality Analyzer Imported cold light source digestion Colorimetric integrated tube
    $5528.00
    TONGAO TR-408ZH Portable STIP-scan imported cold light source, digestion Colorimetric integrated tube
    TONGAO TR-408ZH Portable STIP-scan imported cold light source, digestion Colorimetric integrated tube
    $4882.00
    TONGAO TR-ZH portable STIP-scan imported cold light source Spectrophotometric method, spectra-trophotometry detection
    TONGAO TR-ZH portable STIP-scan imported cold light source Spectrophotometric method, spectra-trophotometry detection
    $3268.00
    TONGAO TR-401ZH Portable STIP-scan heavy metals Detector, imported cold light source Spectrophotometric method, spec-trophotometry
    TONGAO TR-401ZH Portable STIP-scan heavy metals Detector, imported cold light source Spectrophotometric method, spec-trophotometry
    $1574.00
    TONGAO TR-205H Total Chromium Tester, Chromium Ion Tester, Digestion Colorimetric Tube
    TONGAO TR-205H Total Chromium Tester, Chromium Ion Tester, Digestion Colorimetric Tube
    $816.00
    TONGAO TR-718H Copper Tester, Water Quality Copper Detection, Dicyclohexanone Oxalyl Dihydrazone Method
    TONGAO TR-718H Copper Tester, Water Quality Copper Detection, Dicyclohexanone Oxalyl Dihydrazone Method
    $816.00
    TONGAO TR-740H Nickel Tester, Water Quality Nickel Tester, Butanedione Oxime Spectrophotometric method, spec-trophotometry
    TONGAO TR-740H Nickel Tester, Water Quality Nickel Tester, Butanedione Oxime Spectrophotometric method, spec-trophotometry
    $816.00
    TONGAO TR-750H Zinc Tester, Water Quality Zinc Tester, Xylenol Orange Spectrophotometric method, spec-trophotometry
    TONGAO TR-750H Zinc Tester, Water Quality Zinc Tester, Xylenol Orange Spectrophotometric method, spec-trophotometry
    $816.00
    TONGAO TR-710H Portable STIP-scan Water Quality Iron Meter, o-phenanthroline Spectrophotometric method, spec-trophotometry
    TONGAO TR-710H Portable STIP-scan Water Quality Iron Meter, o-phenanthroline Spectrophotometric method, spec-trophotometry
    $816.00
    TONGAO TR 6900A Multi-channel Water Quality Rapid Tester COD Tester
    TONGAO TR 6900A Multi-channel Water Quality Rapid Tester COD Tester
    $2526.00
    TONGAO TR 6900Z Desktop STIP-scan heavy metals measuring instrument
    TONGAO TR 6900Z Desktop STIP-scan heavy metals measuring instrument
    $3268.00
    TONGAO TR 6900Cr Benchtop STIP-scan Total Chromium Tester 0.01mg/L Lower Detection Limit
    TONGAO TR 6900Cr Benchtop STIP-scan Total Chromium Tester 0.01mg/L Lower Detection Limit
    $1622.00
    TONGAO TR 6900NHN Desktop STIP-scan Ammonia Nitrogen Total Nitrogen Tester
    TONGAO TR 6900NHN Desktop STIP-scan Ammonia Nitrogen Total Nitrogen Tester
    $3075.00