EC5 Soil Moisture Smart Sensor
Specification
Soil Moisture Sensor Specifications
| Measurement Range |
In soil: 0 to 0.550 (m³/m³)
Extended range: -0.401 to 2.574 m³/m³ (full scale)The sensor is capable of providing readings outside the standard volumetric water content range. This is helpful in diagnosing sensor operation and installation. See User Manual for additional information. |
| Accuracy |
±0.031 m³/m³ (±3.1%) typical 0 to 50°C (32° to 122°F); ±0.020 m³/m³ (±2%) with soil specific calibration.
This is a system-level accuracy specification and is comprised of the ECH2O probe’s accuracy of ±0.03 m³/m³ typical (±0.02 m³/m³ soil specific) plus the smart sensor adapter accuracy of ±0.001 m³/m³ at 25°C (77°F). There are additional temperature accuracy deviations of ±0.003 m³/m³ / °C maximum for the ECH2O probe across operating temperature environment, typical <0.001 m³/m³ / °C. (The temperature dependence of the smart sensor adapter is negligible.) |
| Resolution |
0.0007 m³/m³ (0.07%) |
| Soil Probe Dimensions |
89 x 15 x 1.5 mm (3.5 x 0.62 x 0.06 in.) |
| Weight |
180 grams (6.3 oz) |
| Decagon ECH2O Probe Part No. |
EC-5 |
| Sensor Operating Temperature |
0° to 50°C (32° to 122°F).
While the sensor probe and cable can safely operate at below-freezing temperatures (to -40°C/F) and up to 75°C (167°F), the soil moisture data collected at these extreme temperatures is outside of the sensor’s accurate measurement range. |
| Volume of Influence |
0.3 liter (10.1 oz) |
| Sensor Frequency |
70 MHz |
| Bits per Sample |
12 |
| Number of Data Channels |
1 |
| Note |
A single smart sensor-compatible HOBO logger can accommodate 15 data channels and up to 100 m (328 ft) of smart sensor cable (the digital communications portion of the sensor cables) |
| Measurement Averaging Option |
No |
| Cable Length Available |
5 m (16 ft) |
| Length of Smart Sensor Network Cable |
0.5 m (1.6 ft) |