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 tab if available
Sensor
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Measurement Range
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In soil: 0 to 0.550 m³/m³ (volumetric water content)
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Extended Range
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-0.401 to 2.574 m³/m³
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Accuracy
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±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
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Resolution
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0.0007 m³/m³ (0.07%)
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Volume of Influence
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0.3 liters (10.14 oz)
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Sensor Frequency
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70 MHz
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Sensor Operating Temperature Range
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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.
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Wireless Mote
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Operating Temperature Range
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-25° to 60°C (-13° to 140°F) with rechargeable batteries
-40 to 70°C (-40 to 158°F) with lithium batteries
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Radio Power
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12.6 mW (+11 dBm) non-adjustable
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Transmission Range
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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
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Wireless Data Standard
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IEEE 802.15.4
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Radio Operating Frequencies
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RXW-SMC-900: 904–924 MHz
RXW-SMC-868: 866.5 MHz
RXW-SMC-922: 916–924 MHz
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Modulation Employed
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OQPSK (Offset Quadrature Phase Shift Keying)
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Data Rate
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Up to 250 kbps, non-adjustable
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Duty Cycle
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<1%
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Maximum Number of Motes
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50 motes per one RX Wireless Sensor Network
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Battery Type/ Power Source
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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)
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Battery Life
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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
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Memory
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16 MB
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Dimensions
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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)
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Weight
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Mote: 223 g (7.87 oz)
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Materials
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Sensor: Weatherproof
Mote: PCPBT, silicone rubber seal
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Environmental Rating
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Mote: IP67, NEMA 6
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Compliance Marks
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 RXW-SMC-900
 RXW-SMC-868
 RXW-SMC-922
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