Part Number - S-SMA-M005

Soil Moisture (20 cm probe) Smart Sensor

Discontinued

Measures soil water content with the integrated field-proven ECH2O™ Sensor and a 12-bit A/D; ±4% accuracy in typical soil conditions, ±2% accuracy with soil-specific calibration; 20 cm probe. Measures soil water content with the integrated field-proven ECH2O™ Sensor and a 12-bit A/D; ±4% accuracy in typical soil conditions, ±2% accuracy with soil-specific calibration; 20 cm probe.

Product upgrade options

S-SMD-M005

10HS Soil Moisture Smart Sensor

$190.00 USD
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Overview

Measures soil water content with the integrated field-proven ECH2O™ Sensor and a 12-bit A/D, providing ±4% accuracy in typical soil conditions, and ±2% accuracy with soil-specific calibration. The sensor's thin profile and 20 cm probe length make it easy to install, while measuring a representative cross-section of soil. Readings are provided directly in volumetric water content.

Features

  • ±4% accuracy in typical soil conditions, and ±2% accuracy with soil-specific calibration.
  • 20 cm probe length
  • Compatible with Onset stand-alone and web-based weather stations
Country of Origin
United States

Specifications

Measurement Range:
In soil: 0 to 0.405(m³/m³)
Extended range: -0.29 to 1.4475 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.

Accuracy: ±0.041 m³/m³ (±4%) 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 ±0.04 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: ±0.0004 m³/m³ (±0.04%)

Soil Probe Dimensions: 254 x 32 x 1.0 mm (10 x 1.25 x 0.04 in.)

Weight: 200 grams (7.0 oz)

Decagon ECH2O Probe Part No.: EC-20

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.

Bits per Sample: 12

Volume of Influence: 0.25 liter (8.5 oz)

Sensor Frequency: 5 MHz

Number of Data Channels: 1 (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)

Compatible items

Extension Cables

S-EXT-CASE2
$40.00 USD
S-EXT-M002
$27.00 USD
S-EXT-M005
$35.00 USD
S-EXT-M010
$50.00 USD
S-EXT-M025
$65.00 USD

Compliance Certificates

COMPLIANCE CERT
$29.00 USD

Documents

Soil Moisture Smart Sensor (S-SMC-M005, S-SMD-M005) User's Manual

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