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Oxidation Reduction Potential (ORP) TesterAn ORP reading / Redox value can be used to: - Indicate suitability of soil, etc. for biological life
- Determine when additional cultivation is unnecessary
- Indicate stability and stage of completion of compost
A simple formula using the readings from an ORP and a pH meter, provides a Redox (rH) value from 0 to 42. Optimum soil rH value is 25 - 28. The pocket tester with a single range (+/- 999 mv) also may be used to measure H2O2 / H2O mixtures.
Useful For Testing Mobile Ion Concentrations In Soil, Compost, And Water. The rH or Redox value is derived from ORP (Oxidation Reduction Potential) and pH readings. An ideal rH value would be 27 - 29.
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