Get high precision EC and VWC measurements.

Volumetric water content (VWC)

Range:
Soilless media calibration: 0.0–1.0 m³/m³

Apparent dielectric permittivity (ε_a): (air) to 80 (water)

NOTE: The VWC range is dependent on the media the sensor is calibrated to. A custom calibration will accommodate the necessary ranges for most substrates.

Resolution:
0.001 m³/m³

Accuracy:
Generic calibration: ±0.03 m³/m³ (±3.00% VWC) typical in mineral soils that have solution EC <8 dS/m

Medium specific calibration: ±0.01–0.02 m³/m³ (±1–2% VWC) in any porous medium

Apparent dielectric permittivity (ε_a): 1–40 (soil range) , ±1 ε_a (unitless) 40–80, 15% of measurement

Dielectric measurement frequency

70 MHz

Temperature

Range:

−40 to 60 °C

Resolution:

0.1 °C

Accuracy:

±0.5 °C from −40 to 0 °C
±0.3 °C from 0 to +60 °C

Bulk electrical conductivity (EC_b)

Range:

0 to 20 dS/m (bulk)

Resolution:

0.001 dS/m

Accuracy:

+/- (5% +0.01 dS/m) from 0 to 10 dS/m
+/- 8% from 10 to 20 dS/m