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

SNiP-SI41 For SDI-12 Canopy Temperature (22° FOV)

The SNiP-SI41 is a 'Sensor Node Integrated Package' for LoRaWAN or CAT-M1 communication of real-time canopy temperature measurements for continuous plant, light and environmental monitoring.

The SNiP-SI41

The base SNiP-SI41 integrates 1x S-NODE and 1x Apogee SI-411 Infrared Radiometer (from the SI-400 Series) to a site’s unique network, communication and power requirements. The S-NODE can support an added 3x Infrared Radiometers.

The Apogee SI-411 Infrared Radiometer (from the SI-400 Series) is among the most accurate non-contact temperature sensors available anywhere. The SI-411 has an SDI-12 digital output and comes with a 22 degree half angle field of view.

Applications include measuring the temperatures of road surfaces, plant canopies, and soil, snow and water surfaces. Measurement of surface temperature is a crucial component of energy transfer. Accurate measurement of the leaf-to-air temperature gradient is essential to the determination of transpiration rate and stomatal conductance in both single leaves and plant canopies.

 

See Further Specifications on the S-NODE
See Further Specifications on the SI-411 Infrared Radiometer (from the SI-400 Series)

Further parameters can be added to SNiP-SI41, without requiring loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application.

 

S-NODE

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

SI-400 Infrared Radiometer Sensor

The SI-411 has an SDI-12 digital output and comes with a 22 degree half angle field of view.

The sensor has tinned leads for connecting to a datalogger. Accurate measurement of the leaf-to-air temperature gradient is essential to the determination of transpiration rate and stomatal conductance in both single leaves and plant canopies.

  • Most accurate infrared radiometer on the market
  • Measures surface temperature rapidly
  • Uncertainty of 0.2°C (95% confidence)
  • 8-14 μm germanium atmospheric window
  • Radiation shield included
  • Multiple field of view (FOV) options
  • Calibrated target temperature range from -30 to 65°C
  • Rugged and lightweight
  • Available in sensor-only version with pigtail leads (for dataloggers) or with handheld meter