Introduction to Sensor
The TEROS 10 is a durable and cost-effective soil moisture sensor designed for accurate volumetric water content (VWC) measurement. Its rugged construction, long service life, and easy system integration make it ideal for large-scale soil monitoring networks and demanding field environments. The sensor provides reliable performance across a wide range of soil and growing media. Its compact design also enables quick and convenient installation with minimal site disturbance.
Specifications
Specifications
Volumetric Water Content
| Parameter | Specifications |
|---|---|
| Range | Mineral Soil Calibration: 0.00–0.64 m³/m³ Soilless Media Calibration: 0.0–0.7 m³/m³ Apparent Dielectric Permittivity (εₐ): 1 (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 | 0.0010 m³/m³ |
| Accuracy | Mineral Soil Calibration: ±0.03 m³/m³ typical in mineral soils that have solution EC <8 dS/m Soilless Media Calibration: ±0.05 m³/m³ typical in media that has a solution EC <8 dS/m Medium Specific Calibration: ±0.01–0.02 m³/m³ in any porous medium Apparent Dielectric Permittivity (εₐ): 1–40 (soil), ±1 εₐ (unitless) 40–80, 15% of measurement |
Measurement Specifications
| Parameter | Specification |
|---|---|
| Dielectric Measurement Frequency | 70 MHz |
| Measurement Volume | See comparison article |
Communication Specifications
| Parameter | Specification |
|---|---|
| Output | 1,000–2,500 mV |
| Data Logger Compatibility | Data acquisition systems capable of switched 3.0–15 VDC excitation and single-ended voltage measurement at greater than or equal to 12-bit resolution. See compatibility chart |
Physical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | Length: 5.1 cm (2.02 in) Width: 2.4 cm (0.95 in) Height: 7.5 cm (2.95 in) |
| Needle Length | 5.4 cm (2.11 in) |
| Operating Temperature Range | Minimum: -40.00 °C |
| Cable Length | 5 m (standard)40 m (maximum custom cable length) Note: Contact Customer Support if a nonstandard cable length is needed. |
| Cable Diameter | 0.165 ± .004 (4.20 ± .10 mm) with min. jacket of .030 (.76 mm) |
| Connector Types | 3.5-mm stereo plug connector or stripped and tinned wires |
| Stereo Plug Connector Diameter | 3.5 mm |
| Conductor Gauge | 22 AWG / 24 AWG drain wire |
Electrical & Timing Characteristics
| Parameter | Specification |
|---|---|
| Supply Voltage (VIN to GND) | Minimum: 3.0 VDC Typical: NA Maximum: 15.0 VDC |
| Measurement Duration | Minimum: 10 ms Typical: NA Maximum: NA |
Compliance
| Parameter | Specification |
|---|---|
| Compliance | EM ISO/IEC 17050:2010 (CE Mark) 2014/30/EU 2011/65/EU EN61326-1:2013 EN55022/CISPR 22 EN 55011:2016/A1:2017 (GROUP 1, CLASS A-RCM mark) |
| GSA | View GSA details |
Features
Applications