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    QIWEI YL-1Z Benchtop residual chlorine Analyzer, Microcomputer Optoelectronic Colorimetric Detection
    QIWEI YL-1Z Benchtop residual chlorine Analyzer, Microcomputer Optoelectronic Colorimetric Detection
    $240.00
    QIWEI ZYL Portable residual chlorine Detector 0~ 5mg/L Measurement range
    QIWEI ZYL Portable residual chlorine Detector 0~ 5mg/L Measurement range
    $211.00
    QIWEI L-612 Portable Chlorine Dioxide Tester, Water Quality Testing 0~ 5mg/L
    QIWEI L-612 Portable Chlorine Dioxide Tester, Water Quality Testing 0~ 5mg/L
    $262.00
    QIWEI L-613 Portable chlorine dioxide Analyzer, AC and DC dual-purpose automatic shutdown
    QIWEI L-613 Portable chlorine dioxide Analyzer, AC and DC dual-purpose automatic shutdown
    $285.00
    QIWEI Y-615 Portable ozone Analyzer 0~ 2.5mg/L Measurement range
    QIWEI Y-615 Portable ozone Analyzer 0~ 2.5mg/L Measurement range
    $264.00
    QIWEI Y-616 Benchtop ozone Detector, water quality detection 0~ 2.5mg/L Measurement range
    QIWEI Y-616 Benchtop ozone Detector, water quality detection 0~ 2.5mg/L Measurement range
    $286.00
    QIWEI YXSY-1 Portable Nitrite Tester, Optoelectronic Colorimetry Water Quality Testing
    QIWEI YXSY-1 Portable Nitrite Tester, Optoelectronic Colorimetry Water Quality Testing
    $264.00
    QIWEI YXSY-2 Benchtop Nitrite Detector, Optoelectronic Colorimetry Nitrite Detector
    QIWEI YXSY-2 Benchtop Nitrite Detector, Optoelectronic Colorimetry Nitrite Detector
    $286.00
    QIWEI BZL-1 Portable Total Phosphorus Tester, Microcomputer Optoelectronic Colorimetric Detection
    QIWEI BZL-1 Portable Total Phosphorus Tester, Microcomputer Optoelectronic Colorimetric Detection
    $262.00
    QIWEI TZL-1 Benchtop Total Phosphorus Tester, Microcomputer Optoelectronic Colorimetry Water Quality Detection
    QIWEI TZL-1 Benchtop Total Phosphorus Tester, Microcomputer Optoelectronic Colorimetry Water Quality Detection
    $285.00
    QIWEI AD-83T Benchtop Ammonia Nitrogen Detector, Microcomputer Optoelectronic Colorimetry
    QIWEI AD-83T Benchtop Ammonia Nitrogen Detector, Microcomputer Optoelectronic Colorimetry
    $262.00
    QIWEI AD-82B Portable Ammonia Nitrogen Tester, Microcomputer Optoelectronic Colorimetric Detection
    QIWEI AD-82B Portable Ammonia Nitrogen Tester, Microcomputer Optoelectronic Colorimetric Detection
    $262.00
    QIWEI JPB-70A pen dissolved oxygen Analyzer, intelligent dissolved oxygen Analyzer Portable automatic temperature compensation
    QIWEI JPB-70A pen dissolved oxygen Analyzer, intelligent dissolved oxygen Analyzer Portable automatic temperature compensation
    $175.00
    QIWEI JPB-607A Portable Intelligent dissolved oxygen Analyzer, Polarographic Laminating ElectRode
    QIWEI JPB-607A Portable Intelligent dissolved oxygen Analyzer, Polarographic Laminating ElectRode
    $225.00
    QIWEI JPB-605 Benchtop dissolved oxygen Meter microcomputer touch keyboard automatic multi-point correction
    QIWEI JPB-605 Benchtop dissolved oxygen Meter microcomputer touch keyboard automatic multi-point correction
    $304.00
    QIWEI NS-1T Benchtop urea Detector Optical inspection Colorimetry water quality analysis
    QIWEI NS-1T Benchtop urea Detector Optical inspection Colorimetry water quality analysis
    $309.00
    QIWEI NS-1B Portable Urea Detector Optical inspection Colorimetry Water Quality Analyzer
    QIWEI NS-1B Portable Urea Detector Optical inspection Colorimetry Water Quality Analyzer
    $240.00
    QIWEI SS-500T Benchtop Suspension Tester Suspension Tester accuracy 1mg/L
    QIWEI SS-500T Benchtop Suspension Tester Suspension Tester accuracy 1mg/L
    $304.00