HM Digital's ORP buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life.



  • Variety pack of ORP buffer solution
  • Test kit to check the quality of your ORP electrode.
  • Simple to use
  • Powder has an indefinite shelf life.

ORP Buffer Powder Solution and Electrode Test Kit

  • Total volume: 1.0 liter. Each powder packet makes 100 ml of solution (when mixed with distilled or deionized water)
  • Accuracy: +/- 0.2 ORP at 25°C

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