TEROS 11 - Advanced soil moisture and temperature sensor

Name: TEROS 11 - Advanced soil moisture and temperature sensor
SKU: SN-VTE-TRS11-5
Price: 325.0 EUR
Availability: InStock

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TEROS 11 is a high-accuracy, easy-to-install soil moisture sensor designed for reliable data in environmental research and agricultural applications. It features a durable construction and innovative calibration technology for precise volumetric water content measurements. Ideal for long-term field use, the TEROS 11 ensures consistent performance in a wide range of soil conditions.

soil soil temperature soil moisture VWC

325.00 €

(Tax excluded)

Documents

TEROS 11/12 User Manual

Internal Reference: SN-VTE-TRS11-5

Dimension

Length: 9.4 cm (3.70 in)
Width: 2.4 cm (0.95 in)
Height: 7.5 cm (2.95 in)

Probe Length

5.5 cm (2.17 in)

Operating Temperature Range

Minimum: -40.00 °C
Typical: NA
Maximum: 60.00 °C

NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.

Cable Length

5 m (standard)

Cable Diameter

0.165 ±.004 (4.20 ± .10 mm) with min. jacket of .030 (.76 mm)

Connector Types

Stripped and tinned wires

Supply Voltage (VCC to GND)

Minimum: 4.0 VDC
Typical: NA
Maximum: 15.0 VDC

Digital Input Voltage (Logic High)

Minimum: 2.8 V
Typical: 3.6 V
Maximum: 5.0 V

Digital Input Voltage (Logic Low)

Minimum: -0.3 V
Typical: 0.0 V
Maximum: 0.8 V

Digital Output Voltage (Logic High)

Minimum: NA
Typical: 3.6 V
Maximum: NA

Power Line Slew Rate

Minimum: 1.0 V/ms
Typical: NA
Maximum: NA

Current Drain (During 25-ms Measurement)

Minimum: 3.0 mA
Typical: 3.6 mA
Maximum: 16.0 mA

Current Drain (While Asleep)

Minimum: NA
Typical: 0.0 mA
Maximum: NA

Power Up Time (SDI-12)

Minimum: NA
Typical: 245 ms
Maximum: NA

Measurement Duratio

Minimum: 25 ms
Typical: NA
Maximum: 150 ms

Compliance

EM ISO/IEC 17050:2010 (CE Mark)
2014/30/EU and 2011/65/EU
EN61326-1:2013 and EN55022/CISPR 22
EN 55011:2016/A1:2017 (GROUP 1, CLASS A-RCM mark)

Range

Mineral Soil Calibration: 0.00–0.70 m3/m3
Soilless Media Calibration: 0.0–1.0 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

Generic Calibration: ±0.03 m³/m³ (±3.00% VWC) typical in mineral soils that have solution EC <8,000 μS/cm
Medium Specific Calibration: ±0.01–0.02 m³/m³ in any porous medium
Apparent Dielectric Permittivity (εa): 1–40 (soil range) , ±1 εa (unitless) 40–80, 15% of measurement

Dielectric Measurement Frequency

70 MHz

Temperature

Range: −40 to +60 °C
Resolution: 0.1 °C
Accuracy: ±1.0 °C from −40 to 0 °C
±0.5 °C from 0 to +60 °C

NOTE: Temperature measurement, for applicable sensors, may not be accurate if sensor is not fully immersed in the medium of interest, due to longer equilibration time.

Supply Voltage1

Minimum: 2.5 VDC
Typical: NA
Maximum: 5.0 VDC

Settling Time

10 ms

Output

300−1,250 mV (depends on excitation voltage)

Data Logger Compatibility

Data acquisition systems capable of switched 2.5–5.0 VDC excitation and single-ended voltage measurement at greater than or equal to 12-bit resolution.

TEROS 11 - Advanced soil moisture and temperature sensor

Customer Reviews