Sensors / Soil Volumetric Water Content

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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. 		— — —

HS2P

Interchangeable sensors; can swap the 12 cm and 20 cm sensors with the reader.

CS650-L

Not interchangeable Soil electrical conductivity (EC), relative dielectric permittivity, volumetric water content (VWC), soil temperature

HS2P

Volumetric water content (VWC) of porous media (such as soil)
  • Probe Options: 3% typical (Accuracy assumes solution EC of < 4 dS/m when using the CS658P 20-cm probe.)
  • Probe Options: 3% typical (Accuracy assumes solution EC of < 6.5 dS/m when using the CS659P 12-cm probe.)

CS650-L

  • Volumetric Water Content: ±1% (with soil-specific calibration)
  • Volumetric Water Content: ±3% (typical with factory VWC model) where solution EC < 3 dS/m
 Measurement system

HS2P

HS2P is a complete system.

CS650-L

Long rods with large sensing volume (> 6 L) are suitable for soils with low to moderate electrical conductivity.

HS2P

Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. Replaceable

CS650-L

Not replaceable

CS655-L

Not interchangeable Soil electrical conductivity (EC), relative dielectric permittivity, volumetric water content (VWC), soil temperature
  • Volumetric Water Content: ±1% (with soil-specific calibration) where solution EC < 3 dS/m
  • Volumetric Water Content: ±3% (typical with factory VWC model) where solution EC < 10 dS/m
 Measurement system Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. Not replaceable

CS616-L

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)
  • Probe Options: 3% typical (Accuracy assumes solution EC of < 4 dS/m when using the CS658 20-cm probe.)
  • Probe Options: 3% typical (Accuracy assumes solution EC of < 6.5 dS/m when using the CS659 12-cm probe.)
 HS2 is a complete system. Short rods are easy to install in hard soil. Suitable for soils with higher electrical conductivity. Replaceable

CS658

Not interchangeable Volumetric water content of porous media (such as soil) — HS2 Suitable for hard soils. Replaceable

CS659

Not interchangeable Volumetric water content of porous media (such as soil) — HS2 Suitable for hard soils. Replaceable

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