Why does the POGO have 4 metal tines?
It’s a uniquely patented design that maximizes sampling size and precision while utilizing a unique, scientifically precise and accurate measurement method called “Coaxial Impedance Dielectric Reflectometry“.
Sensor
I only have roots that are 1” deep. Don’t I want to measure to a depth of 1”?
Even if roots are very shallow (1”), due to natural capillary activity in a turfgrass root zone, this shallow root system is still predominantly influenced by the top 2 to 2.5” of the root zone medium.
Why can’t I choose the length of tines for the POGO, so I can measure at the depth I need for the location I’m at?
Even in deep-rooted systems, the predominant exchange of moisture and salinity that the turfgrass depends on for optimal performance occurs in the top 2 to 2.5”. This is always the region you want to measure and reference against over time. By varying the depth, you will end up basing your decisions off of invalid information. …
Shouldn’t POGO measure the moisture content across a deeper depth (to ensure it includes the entire root system?)
No! The predominant moisture and salinity exchange with the root system of all types of turf occurs in t the top 2” to 2.5” of the root system. This is why POGO was designed to measure the top 2.2” inches for moisture and salinity. When the sensor is measuring too deep, you are diluting the …
Can I replace the tines on the POGO?
If the tines get damaged, the entire integrated sensor assembly can be replaced as one unit.
How does the sensor in the POGO differ from other sensors?
Using the patented and unique Stevens HydraProbe II sensor and its coaxial impedance dielectric reflectometry protocol, POGO measures WFV (aka VWC) and EC to an accuracy of ±1% without any calibration in any soil. Surface heat index and soil temperature are measured with Infrared and a soil temp probe respectively with equal precision. It does …
How does the sensor in the POGO differ from other sensors? Read More »
Can pH be measured with the sensor in the soil?
No, pH is a measurement in solution. Soil consists of solution, air and particles.
