Sensors | Measurements Made | Water Content Accuracy | Required Equipment | Soil Suitability | Rods | |
---|---|---|---|---|---|---|
SoilVue 10 |
— | Volumetric water content (VWC), permittivity, electrical conductivity (EC), and temperature |
Volumetric Water Content: ±1.5% typical with most soils Soils with high organic matter (> 12% soil organic carbon) or high clay content (> 45% clay) may need a soil-specific calibration due to the dispersive nature of these materials. |
— | — | — |
CS655 |
Not interchangeable | Soil electrical conductivity (EC), relative dielectric permittivity, volumetric water content (VWC), soil temperature |
|
Measurement system | Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. | Not replaceable |
CS650 |
Not interchangeable | Soil electrical conductivity (EC), relative dielectric permittivity, volumetric water content (VWC), soil temperature |
|
Measurement system | Long rods with large sensing volume (> 6 L) are suitable for soils with low to moderate electrical conductivity. | Not replaceable |
CS616 |
Not interchangeable | Volumetric water content (VWC) of porous media (such as soil) | ±2.5% VWC (using standard calibration with bulk EC of ≤ 0.5 dS m-1, bulk density of ≤ 1.55 g cm-3, and measurement range of 0% to 50% VWC) | Measurement system | Long rods and lower frequency are well-suited for soft soil with low electrical conductivity (< 2 dS/m). | Not replaceable |
HS2 |
Interchangeable sensors; can swap the 12 cm and 20 cm sensors with the reader. | Volumetric water content (VWC) of porous media (such as soil) |
|
HS2 is a complete system. | Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. | Replaceable |
HS2P |
Interchangeable sensors; can swap the 12 cm and 20 cm sensors with the reader. | Volumetric water content (VWC) of porous media (such as soil) |
|
HS2P is a complete system. | Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. | Replaceable |
TDR200 |
— | Volumetric water content (VWC) of porous media (such as soil), soil electrical conductivity (EC), rock mass deformation | — | Measurement system | — | — |