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Enabling better global research outcomes in soil, plant & environmental monitoring.

S-NODE: SDI-12 Node

SDI-12 Node for Environmental Monitoring.

The S-NODE has been designed to support the broad suite of SDI-12 based environmental sensors. The S-NODE can support sensors with higher power requirements; a solar panel can charge either the internal lithium-ion battery or both the node and sensor can be powered by an external 12V system (e.g. battery or mains source). The S-Node’s SDI-12 communications can be customised to allow for interfacing with any SDI-12 sensor.

A decoder suitable for TTN will be provided based upon sensor configuration.

  • Choice of CAT-M1 / NB-IoT communications or LoRaWAN™ low-power long-range connectivity
  • AS923, AU915, EU868 and US915 available, with other region plans available upon request.
  • Internal Lithium-ion, rechargeable by solar panel or external 12V or 24V DC power options
  • External solar/battery input: 12-32V DC.
  • Standard IP65 enclosure, optional IP67
  • Supports the full range of SDI-12 commands, and sensors requiring constant excitation.
Battery: 6.7Ah Lithium-Ion rechargeable.
Optional 13.4Ah.
Battery Life: Up to 1 week without charge, dependant upon sensor configuration.
External Power Supply: 12-32V DC, 11W or 22W Solar Panel, or 12V mains supply.
SDI-12 Commands Supported: Measurement (M), Concurrent (C), Result (R). Other SDI-12 commands can be sent manually from the device (eg: change address, sensor specific commands).
Configuration: Command line based, Windows 10, Mac and Linux compatible.
SDI-12 Sensor Capacity: 4 standard, up to 10 with SDI-12 break-out box.
LoRaWAN Features: OTAA & ABP (Over the Air Activation or Activation by Personalisation), Adaptive Data Rates, Confirmed Messaging, Public/Private networks.
Upload Interval: From 1 second, user configurable.

Variant S-NODE-C: CAT-M1 / NB-IoT

Variant S-NODE-L1: with LoRaWAN

  • 868-928Mhz (Global LoRaWAN)
  • LoRaWAN Version: MAC V1.0.2
  • Regional Parameters Version: PHY V1.0.2 REV B / B