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


The SNiP-ATH2 is a preconfigured 'Sensor Node Integrated Package' for LoRaWAN or CAT-M1 communication of real-time microclimate humidity and temperature for continuous environmental monitoring.


The SNiP-ATH2 integrates 1x S-NODE and 1x ATH-2S Ambient Temperature & Humidity (SDI-12) Sensor to a site’s unique network, communication and power requirements.

The ATH-2S provides a measurement on Ambient Temperature & Humidity, and with a far higher accuracy drift of better than ±2% Relative Humidity. Another substantial development of the ATH-2 Series design is the removable sensor chip, which can be quickly swapped out in the field for a price far lower than the typical calibration or complete replacement. The ATH-2 Series instrument does not need to be fully removed from the site, freighted and then reinstalled for simple calibration maintenance. This advancement significantly reduces the time, hassle and costs associated with avoiding data gaps and maintaining long-term data integrity.


See Further Specifications on the S-NODE
See Further Specifications on the ATH-2S Ambient Temperature & Humidity (SDI-12) Sensor

Further parameters can be added to the SNiP without requiring loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application. The S-NODE can support 3x additional sensors to the base package.

ATMOS 14 Temp & Humiditiy

  • SDI-12 Compatible
    Integrate into non-Decagon data loggers with the easy-to-use SDI-12 communication protocol.
  • Compact
    This 5 cm x 2 cm sensor is able to fit into the smallest of spaces.
  • Weatherproof
    Thanks to its unique Teflon screen, the relative humidity sensor can survive a deluge. Naturally, it won’t be transmitting accurately while waterlogged; but as soon as it has dried out, it’s back in the game.
  • Fast Response
    The Teflon screen protects the sensor from liquid water and dust without limiting diffusion of water vapour. The protected sensor is still able to quickly respond to changes in humidity.
  • Integrated Temperature for Accuracy
    Accurate relative humidity readings require accurate air temperature readings taken at the same place and time. This sensor takes both measurements simultaneously for the best possible accuracy.
  • Radiation Shield Included
    The included radiation shield is designed to improve air temperature readings by minimising radiation and maximising airflow over the surface of the sensor. Specially designed to preserve the correlation between actual air temperature and sensor air temperature while keeping the shield size small.


The S-NODE (for Environmental Monitoring) 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).

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

  • LoRaWAN™ low-power long-range connectivity
  • Supports the full range of SDI-12 commands, and sensors requiring constant excitation.
  • Optional CAT-M1
  • Solar rechargeable Lithium-ion or external 12V power options
  • Optional Multi-constellation GNSS
  • AS923, AU915 and US915 available, with other region plans available upon request.
  • Standard IP65 enclosure, optional IP67


ATH-2S Ambient Temp & Humidity Sensor

  • Temperature:
    − range -40 to 60 deg. C
    − accuracy better than ± 0.15 K
  • Air Humidity
    − range 0 to 100 %
    − accuracy better than ± 2 %
  • Size: ø20 x 81 mm
  • Sensor replacement by customer on site – cheaper than recalibration
  • SDI-12 outputs