Measuring the redox potential in soil or sediment can be a daunting task. Recent research has well shown that continuous measurements, as opposed to single point measurements, are crucial to understand soil processes. We have developed the HYPNOS system to be able to perform these measurements.
The Hypnos project started with our publication back in 2004, showing the usefulness of continuous multi-depth measurements. Back then, no tools were available that were easy to use, and could last longer than a few months in the field. Through three designs, we are now at Hypnos IV.
The Hypnos is capable of measuring 48 redox potentials simultaneously, together with 50 (or more) digital temperatures. Intervals can be set from 1 to 60 minutes. The supplied batteries are enough for a year of operation (depending on number of porobes and interval). Data is stored as csv files on an SD card: no closed source software needed! Together with probes specifically designed for soil measurements, the Hypnos forms the ideal system for measurements in Ecology, Pollution control, GHG emission studies and application such as archaeological preservation in situ. MVH Consult delivers these tools directly to Universities, Consultancy firms and private parties all over the world.
Reference: Vorenhout, M., van der Geest, H.G., and Hunting, E.R. 2011. An improved datalogger and novel probes for continuous redox measurements in wetlands. Int. J. Environ. Anal. Chem. 91(7–8): 801–810. doi:10.1080/03067319.2010.535123.
Flyer: Flyer Hypnos IV