Soil Redox Probe

The ecoTech Redox Electrode according to Mansfeldt is designed for continuous measurement of redox potential (Eh/ORP) directly within soils. Suitable for permanent field and laboratory installations, the electrode can operate under both unsaturated and water-saturated conditions.

The compact probe incorporates a normalised 99.95% platinum measuring surface, designed to provide good contact with minimally disturbed soil and improve reproducibility between measurement locations. The measuring electrode is separated from the reference electrode, allowing the reference system to be maintained or replaced without disturbing the permanently installed ORP probe.

Developed in collaboration with Prof. Dr. Tim Mansfeldt of the University of Cologne, the system is particularly suited to long-term studies where changes in soil oxidation and reduction conditions need to be monitored continuously.

Key Features

• Continuous in-situ measurement of soil redox potential (Eh/ORP)

• -1 to +1 V measurement range

• 1 mV resolution

• Normalised 99.95% platinum measuring surface

• Compact 6 mm diameter carbon-fibre shaft

• Suitable for permanent soil installation

• Suitable for saturated and unsaturated conditions

• Separate Ag/AgCl reference electrode

• Maintenance-free measuring electrode

• Field and laboratory applications

• Compatible with ecoTech enviLog monitoring systems

• SDI-12 integration available via connection module

• Can be combined with ecoTech soil pH electrodes in the same monitoring system

Applications

Ideal for soil science, wetland and peatland research, agricultural research, groundwater-influenced soils, lysimeter studies and long-term monitoring of changing oxidation and reduction conditions.