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METTLER TOLEDO™ SevenExcellence™ S400 Benchtop pH Meter

The S400 meter measures pH, redox/ORP, and ISFET. It can be expanded with additional modules to measure conductivity, resistivity, DO, BOD, ISE, salinity, and TDS. It has an intuitive touchscreen, the ability to create measurement shortcuts, and can export data to a printer, Excel, or LIMS system.

Manufacturer:  METTLER TOLEDO™ 30046241

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Catalog No. 01-910-901



  • pH, Redox/ORP, and ISFET meter than can be expanded with additional measurement modules to measure conductivity, resistivity, dissolved oxygen, ISE, salinity, TDS, and BOD
  • Easily create measurement and calibration shortcuts
  • 7 inch color touch screen with intuitive menu navigation
  • Compatible with a wide range of electrodes for any application
  • *Compatible with our ISM electrodes that capture and save calibration data which is then automatically recognized by the meter once connected
  • Meter connects to electrodes via BNC; S7 to BNC cables available
  • Export data to a printer, Excel file, or LIMS system
  • Automation available for measurements and cleaning in high-throughput applications
  • Manage user permissions and access to ensure data integrity
  • Compatible with LabX software for advanced data management and 21CFR part 11 regulatory compliance
  • Optional comprehensive qualification package available including IQ/OQ/PQ
  • Preventative maintenance and service available through METTLER TOLEDO Service


-30°C to +130°C
Max. 5 points, 8 pre-defined and 20 user-defined buffer group
S400 pH meter; InLab Expert Pro-ISM electrode; electrode holder; 2 buffer sachets for pH 4.01, 7, 9.21 and 10.01; EasyDirect pH activation key (pH data management software); test certificate; pH measurement guide
250 analyses (20.000 data points)
0.001μS/cm to 2000mS/cm
-2 to 20
0.001 to 1
USB, RS232 and Ethernet
13 pre-defined and 20 user-defined standard
Chinese, Chinese (TW), Croatian, Czech, Danish, Dutch, English (GB), English (US), French, German, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (BR), Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Vietnamese
S400 Kit - Standard Applications
-2000 to 2000 mV
0.001, 0.01, 0.1
Product Certifications