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RXW-SMD-868 - HOBOnet Soil Moisture 10HS Sensor

R5,031.58

The HOBOnet Wireless Soil Moisture Sensor integrates the field-proven ECH2O™ 10HS Sensor and provides readings directly in volumetric water content. The 10cm probes measure soil moisture over a larger..

  • Brands ONSET
  • Product Code: RXW-SMD-868
  • Availability: In Stock

Tags: HOBOnet sensor, soil moisture, large soil volume, RX3000

RXW-SMD-868 - HOBOnet Soil Moisture 10HS Sensor

The HOBOnet Wireless Soil Moisture Sensor integrates the field-proven ECH2O™ 10HS Sensor and provides readings directly in volumetric water content. The 10cm probes measure soil moisture over a larger volume of soil, helping to average out any soil variability. 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 large 1-litre volume of soil, providing a more accurate picture of average soil moisture
  • High-frequency (70 MHz) circuit provides good accuracy even in high-salinity and sandy soils.

Wireless Features

  • 868 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-SMD-xxx sensor supports the following measurement: Soil Moisture

 

For more information visit Onset or check out their YouTube channel

 

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. Still, think you might need some assistance in choosing the best solution?

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Sensor
Extended Range -0.659 to 0.6026 m³/m³; see Note 1
Sensor Accuracy ±0.033 m³/m³ (±3.3%) typical 0 to 50°C (32° to 122°F) for mineral soils up to 10 dS/m and ±0.020 m³/m³ (±2%) with soil specific calibration; see Notes 4 and 5
Sensor Frequency 70 MHz
Sensor Measurement Range In soil: 0 to 0.570 m³/m³ (volumetric water content)
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 are outside of the sensor’s accurate measurement range. Extended temperatures above 50°C (122°F) will decrease mote battery life.
Sensor Resolution 0.0008 m³/m³ (0.08%)
Volume of Influence 1 litre (33.81 oz)
Wireless Mote
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
Data Rate Up to 250 kbps, non-adjustable
Duty Cycle <1%
Maximum Number of Motes 50 motes per one RX Wireless Sensor Network
Modulation Employed OQPSK (Offset Quadrature Phase Shift Keying)
Power Source Two AA 1.2V 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)
Radio Operating Frequencies RXW-SMD-900: 904–924 MHz RXW-SMD-868: 866.5 MHz RXW-SMD-922: 916–924 MHz
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
Wireless Mote Dimensions RXW-SMD-xxx soil probe: 89 x 15 x 1.5 mm (3.5 x 0.62 x 0.06 in.) 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)
Wireless Mote Environmental Rating Mote: IP67, NEMA 6
Wireless Mote Materials Sensor: Weatherproof Mote: PCPBT, silicone rubber seal
Wireless Mote Memory 16 MB
Wireless Mote Operating Range Temperature: -25° to 60°C (-13° to 140°F) with rechargeable batteries -40 to 70°C (-40 to 158°F) with lithium batteries
Wireless Mote Weight RXW-SMD-xxx sensor and cable: 180 grams (6.3 oz) Mote: 223 g (7.87 oz)