• Precision Devices for the Rail Industry
    Reliable high-voltage and current measurement, high-precision energy metering, safe signal isolation
  • Memosens Academy
    Discover more about the value of Memosens
  • Maximum Performance in a Minimum of Space
    MemoRail with Modbus Interface
    Multiparameter measuring device in a 17.5 mm modular housing
  • ProLine | Interface Technology
    First-class high-precision products with protective separation
  • BasicLine | Interface Technology
    Optimized for standard applications
  • Process Analytics | Measurement by System
    From the sensor to the process analyzer
  • Portavo | Memosens Mobile
    Portables with Memosens technology

Measuring Modules, pH / ORP


Certificates / Approvals

GOST Approval  (en)

12566 |  Mess-System Protos 3400 (X)
Document No. DE.C.31.001.A NO. 42933 | 2011-06-16
PDF (file size 4.72 MB)

EU Declaration of Conformity (en)

12740 |  Protos 3400 S and 3400 C (Non Ex Devices / Modules)
Document-No. EU171115D | 2017-11-15
PDF (file size 1.79 MB)

EU Declaration of Conformity (en)

12745 |  Protos 3400 X S and 3400 X C (Ex Devices / Modules)
Document No. EU171115C | 2017-11-15
PDF (file size 1.97 MB)
Contact Us
Phone: +49 30 80191-0
Fax: +49 30 80191-200
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