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Electrodes consist of different materials (very frequent: platinum, calomel or hydrogene electrodes) and are hence applicable multi-purposely: to determine the pH value, the so-called single-rod measuring cells are used. Yet, the standard hydrogene electrode serves as reference electrode determining the standard potential of redox pairs. Most frequent are the solid state electrodes containing of a metal and its dilution. Yet, also liquid electrodes such as quicksilver electrodes are possible. 

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Electrodes

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  1. WTW

    pH-combination electrode SenTix 41 with integrated temperature sensor

    Regular Price: €199.00

    Special Price €189.05

    SKU: WW103635
    In Stock
  2. WTW

    SenTix 61 standard pH combination electrode

    €145.00
    SKU: WW103640
    In Stock
  3. WTW

    Conductivity electrode TetraCon 325

    Regular Price: €446.00

    Special Price €414.78

    SKU: WW301960
    In Stock
  4. Mettler-Toledo

    pH electrode LE438 (plastic, 3-in-1)

    €155.00
    SKU: MR51340242
    In Stock
  5. Windaus

    Diaphragma cleaner for pH-Elektrode, 250ml

    €10.84
    SKU: ID610397250
    In Stock
  6. Mettler-Toledo

    pH electrode LE407 (plastic, gel

    €79.10
    SKU: MR51340330
    In Stock
  7. Mettler-Toledo

    pH combination electrode InLab Easy

    €94.90
    SKU: MR51343010
    In Stock
  8. Mettler-Toledo

    pH combination electrode InLab Science

    €226.00
    SKU: MR51343070
    In Stock
  9. Mettler-Toledo

    pH combination electrode InLab Micro

    €264.00
    SKU: MR51343160
  10. Mettler-Toledo

    InLab® Ultra Micro-ISM

    €315.00
    SKU: MR30244732
    In Stock
  11. Mettler-Toledo

    pH-Elektrode LE438-IP67

    €172.00
    SKU: MR30247153
    In Stock
  12. WTW

    SenTix 21 basic pH combination electrode

    €126.00
    SKU: WW103631
    In Stock
  13. WTW

    SenTix 22 basic pH combination electrode

    €126.00
    SKU: WW103633
    In Stock
  14. WTW

    pH combination electrode SenTix 41-3

    €234.00
    SKU: WW103636
    In Stock
  15. WTW

    SenTix Sp Spear-type pH-combination electrode

    Regular Price: €284.00

    Special Price €269.80

    SKU: WW103645
    In Stock
  16. WTW

    SenTix Sur surface pH combination electrode

    €236.00
    SKU: WW103646
    In Stock
  17. WTW

    SenTix ORP ORP combination electrode

    €199.00
    SKU: WW103648
    In Stock
  18. WTW

    SenTix HW precision pH combination electrode

    €234.00
    SKU: WW103650
    In Stock
  19. WTW

    SenTix 940 combined pH sensor, digital

    €226.00
    SKU: WW103740
    In Stock
  20. WTW

    pH-Combination electrode Sensolyt

    €245.00
    SKU: WW109115
    In Stock
  21. WTW

    Oxygen sensor (galvanic) CellOx 325

    €833.00
    SKU: WW201533
    In Stock
  22. WTW

    WP 90/3 3 exchange membrane heads

    €139.00
    SKU: WW202725
    In Stock
  23. WTW

    SenTix Mic-D combined pH-electrode

    €291.00
    SKU: WW103660
  24. WTW

    SenTix HWD pH electrode

    €330.00
    SKU: WW103731
  25. Mettler-Toledo

    pH-Elektrode InLab Solids Pro IP67

    €351.00
    SKU: MR51343156
  26. Mettler-Toledo

    pH-Gerät FiveEasy, Tischgerät (Entry-Level)

    €426.00
    SKU: MR30266658
  27. Mettler-Toledo

    pH combination electrode InLab Routine

    €156.00
    SKU: MR51343050
  28. Mettler-Toledo

    pH combination electrode InLab Routine Expert

    €146.00
    SKU: MR51343100
  29. Mettler-Toledo

    pH combination electrode InLab Routine Expert Pro

    €236.00
    SKU: MR51343101
  30. Mettler-Toledo

    pH combination electrode InLab Power

    €347.00
    SKU: MR51343110
  31. Mettler-Toledo

    pH combination electrode InLab Solids

    €262.00
    SKU: MR51343153
  32. Mettler-Toledo

    InLab® Reach 225

    €197.00
    SKU: MR30244733
  33. Mettler-Toledo

    InLab413, IP67, pH electrode

    €265.00
    SKU: MR51340288
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Generally speaking, electrodes are electron conductors which absorb or deliver those from a medium or to it (an electrolyt solution). They always have a positive pole (anode) and a negative Pole (cathode), between them electrodes are flowing. Hence, it comes to an electrochemical transformation.