ECH2O EC-5
Soil Moisture Sensor
The EC-5 delivers research-grade accuracy at a price that makes large sensor networks economically practical. You can adequately characterize your site with soil moisture sensors at multiple depths and locations, even if you’re on a tight budget.
Engineered for accuracy
The EC-5 determines volumetric water content (VWC) by measuring the dielectric constant of the media using capacitance/frequency domain technology. Its 70 MHz frequency minimizes salinity and textural effects, making this sensor accurate in almost any soil or soilless media. Factory calibrations are included for mineral soils, potting soils, rockwool, and perlite.
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Easy installation
Just 5 cm long with a ~0.2 L measurement volume, this handy little sensor is easy to install in the field and can also be used in nursery pots. The EC-5’s compact design makes it easy to push directly into undisturbed soil to ensure good accuracy.
Easy integration
The EC-5’s analog signal means no-hassle integration with systems manufactured by other companies.
Feature summary
- Measures volumetric water content
- Affordable: ideal for large sensor networks
- Simple sensor with excellent accuracy
- Small volume of influence (eg., field spatial variability, lab column studies, or greenhouse research)
- 70 MHz frequency minimizes salinity and textural effects
- Factory calibrations included for mineral soils, potting soils, rockwool, and perlite
- Small size means easy installation
- Plug and play capability
- Easy integration with other systems
- Use with ZL6 data logger to collect data remotely
Water Content Features
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | Features | TEROS 10 | TEROS 11 | TEROS 12 | TEROS 54 | ECH20 EC-5 | ECH20 10HS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Measures volumetric water content | X | X | X | X | X | X | ||||
| 2 | Measures temperature | X | X | X | |||||||
| 3 | Measures EC | X | |||||||||
| 4 | Depths measured simultaneously | 1 | 1 | 1 | 4 | 1 | 1 | ||||
| 5 | Individually normalized | X | X | X | |||||||
| 6 | Can install manually | X | X | X | X | X | |||||
| 7 | ariel.dearth | 21/05/2024 02:06 PM | ariel.dearth | 21/05/2024 02:06 PM | Install tool available | TBIT | TBIT | TBIT | TEROS 54 Install Tool | N/A | N/A |
| 8 | Install via borehole or trench | Either | Either | EIther | Borehole | Either | Either | ||||
| 9 | Quickest install/removal | X | |||||||||
| 10 | Maintenance-free | X | X | X | X | X | X | ||||
| 11 | Compatible with verification clip | X | X | X | |||||||
| 12 | Volumetric water content accuracy - generic calibration | ±0.03 m³/m³* | ±0.03 m³/m³* | ±0.03 m³/m³* | ±0.05 m³/m³* | ±0.03 m³/m³* | 0.00 - 0.57 m³/m³* | ||||
| 13 | Volumetric water content accuracy - medium specific calibration | ±0.01–0.02 m³/m³** | ±0.01–0.02 m³/m³** | ±0.01–0.02 m³/m³** | ±0.02–0.03 m³/m³** | ±0.02 m³/m³** | N/A | ||||
| 14 | Analog vs digital | Analog | Digital | Digital | Digital | Analog | Analog | ||||
| 15 | Uses capacitance technology | X | X | X | X | X | X | ||||
| 16 | Maximum measurement volume | 430 mL | 1010 mL | 1010 mL | 300 cm³ per segment | 240 mL | 1320 mL | ||||
| 17 | Connects to ZENTRA | X | X | X | X | X | X | ||||
| 18 | ariel.dearth | 21/05/2024 02:04 PM | ariel.dearth | 21/05/2024 02:04 PM | LEARN MORE | TEROS 10 | TEROS 11 | TEROS 12 | TEROS 54 | ECH20 EC-5 | ECH20 10HS |
| 19 | * Generic calibration - typical in mineral soils that have solution EC | ||||||||||
| 20 | ** Medium specific calibration - in any porous medium | ||||||||||
| Features | TEROS 10 | TEROS 11 | TEROS 12 | TEROS 54 | ECH20 EC-5 | ECH20 10HS |
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