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- Product Code: CH-9464-P
- MPN: CH-9464-P
The Conductivity, water content and soil temperature sensor probe (Decagon GS3) can measure many types of growing media, specially in greenhouse applications where the probe can be inserted easily into different types of soilless substrates. The GS3 sensor determines volumetric water content (VWC) by measuring the dielectric constant (εa) of the medium using capacitance / frequency-domain technology, the temperature using a thermistor, and electrical conductivity using a stainless steel electrode array.
Specifications
General specifications
- Operating temperature: -40 to 60 ºC
- Dielectric measurement frequency: 70 MHz
- Measurement time: 150 ms
- Dimensions: 9.3 x 2.4 x 6.5 cm
- Prong length: 5.5 cm
- Cable length: 5 m
Volumetric water content
- Accuracy: εa: ±1 εa (unitless) from 1 to 40 (soil range), ±15% from 40 to 80
- Resolution:
- 0.1 εa (unitless) from 1 to 20
- < 0.75 εa (unitless) from 20 to 80
- 0.002 m3/ m3 (0.2% VWC) from 0 to 40% VWC
- 0.001 m3/ m3 (0.1% VWC) > 40% VWC
- Range: Apparent dielectric permittivity (εa): 1 (air) to 80 (water)
Bulk electrical conductivity
- Accuracy: ± 5% from 0 to 5 dS/m, ±10% from 5 to 23 dS/m
- Resolution: 0.001 dS/m from 0 to 23 dS/m
- Range: 0 to 25 dS/m (bulk)
Temperature
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Accuracy: ±1 ºC
- Resolution: 0.1 ºC
- Range: -40 to 60 ºC