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HOBOnet Soil Moisture EC-5 Sensor

Manufacturer:
The HOBOnet Wireless Soil Moisture Sensor integrates the field-proven ECH2O™ EC5 Sensor and provides readings directly in volumetric water content. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station.
Part Number: RXW-SMC-922
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$731.00 ex GST
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Overview

The HOBOnet Wireless Soil Moisture Sensor integrates the field-proven ECH2O™ EC5 Sensor and provides readings directly in volumetric water content. The sensor's high-frequency design minimizes sensitivity to salinity and textural effects, and gives it a wide measurement range. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features


Sensor Features

  • ±3% accuracy in typical soil conditions, and ±2% accuracy with soil-specific calibration
  • Measures a 0.3-liter volume of soil for taking readings at a specific depth or in a container
  • High-frequency (70 MHz) circuit provides good accuracy even in high-salinity and sandy soils

Wireless Features

  • 922 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-SMC-xxx sensor supports the following measurement: Soil Moisture

Important Info:

A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager (RXMOD-RXW-xxx), and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RX-RPTR-xxx) can be added to extend the range.

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation above.

Sensor

Measurement Range

In soil: 0 to 0.550 m³/m³ (volumetric water content)

Extended Range

-0.401 to 2.574 m³/m³

Accuracy

±0.031 m³/m³ (±3.1%) typical 0 to 50°C (32° to 122°F) for mineral soils up to 8 dS/m and ±0.020 m³/m³ (±2%) with soil specific calibration; see Notes 2 and 3

Resolution

0.0007 m³/m³ (0.07%)

Volume of Influence

0.3 liters (10.14 oz)

Sensor Frequency

 

70 MHz

Sensor Operating Temperature Range

0° to 50°C (32° to 122°F). Although the sensor probe and cable can safely operate at below-freezing temperatures (to -40°C/F), the soil moisture data collected at these extreme temperatures is outside of the sensor's accurate measurement range.

Wireless Mote

Operating Temperature Range

-25° to 60°C (-13° to 140°F) with rechargeable batteries
-40 to 70°C (-40 to 158°F) with lithium batteries

Radio Power

12.6 mW (+11 dBm) non-adjustable

Transmission Range

Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high
Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high

Wireless Data Standard

IEEE 802.15.4

Radio Operating Frequencies

RXW-SMC-922: 916–924 MHz

Modulation Employed

OQPSK (Offset Quadrature Phase Shift Keying)

Data Rate

Up to 250 kbps, non-adjustable

Duty Cycle

<1%

Maximum Number of Motes

50 motes per one RX Wireless Sensor Network

Battery Type/ Power Source

Two AA 1.2 V rechargeable NiMH batteries powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)

Battery Life

With NiMH batteries: Typical 3–5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life
With lithium batteries: 1 year, typical use

Memory

16 MB

Dimensions

Cable length: 5 m (16.4 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight

Mote: 223 g (7.87 oz)

Materials

Sensor: Weatherproof
Mote: PCPBT, silicone rubber seal

Environmental Rating

Mote: IP67, NEMA 6

Compliance Marks

Australia and New Zealand Complicance     RXW-SMC-922

Onset HOBOnet Field Monitoring System

Transform the way you collect and view field data! With up to 50 wireless sensors streaming data back to one central, cloud-based weather station, you can now measure conditions over large areas once considered too costly or impractical to monitor.

The NEW HOBOnet Field Monitoring System from Onset provides a cost-effective and scalable solution for web-enabled monitoring of field conditions for applications such as crop management, research, and greenhouse operations.


How to Create a Dashboard in HOBOlink

This video shows users of the Onset HOBOlink cloud service how to create a dashboard for instant visualization of current and historical data. HOBOlink dashboards are a powerful and intuitive way to combine data from multiple Onset HOBO RX3000 or HOBOnet systems and show the data in a single view.


How To Add the Onset HOBOnet Manager to the RX3000 Station

This video explains how to install the Onset HOBOnet Manager in your HOBO RX3000 station. The Manager enables your wireless sensors to join a network and begin taking measurements and transmitting data.


How to Add Sensors to the HOBOnet Wireless Sensor Network

This video will show you how to pair a Onset HOBOnet wireless sensor to its HOBOnet RX3000 weather station.


How to Create a Map View of your HOBOnet Wireless System

This video will show you how to set up the Google Map feature for your HOBOnet Field Monitoring System.


Wireless and Wired Sensors

Click Here for HOBOnet wireless sensors or see related products below.

For Smart Sensors (Plugged into RX3000) Click here

Overview

The HOBOnet Wireless Soil Moisture Sensor integrates the field-proven ECH2O™ EC5 Sensor and provides readings directly in volumetric water content. The sensor's high-frequency design minimizes sensitivity to salinity and textural effects, and gives it a wide measurement range. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features


Sensor Features

  • ±3% accuracy in typical soil conditions, and ±2% accuracy with soil-specific calibration
  • Measures a 0.3-liter volume of soil for taking readings at a specific depth or in a container
  • High-frequency (70 MHz) circuit provides good accuracy even in high-salinity and sandy soils

Wireless Features

  • 922 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-SMC-xxx sensor supports the following measurement: Soil Moisture

Important Info:

A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager (RXMOD-RXW-xxx), and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RX-RPTR-xxx) can be added to extend the range.