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

SNiP-SI42 For Digital Canopy Temperature (18° FOV)

The SNiP-SI42 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-SI42

The SNiP-SI42 integrates 1x S-NODE and 1x Apogee SI-421 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-421 Infrared Radiometer (from the SI-400 Series) is among the most accurate non-contact temperature sensors available anywhere. The SI-421 has an SDI-12 digital output and comes with an 18 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 Apogee SI-421 Infrared Radiometer (from the SI-400 Series)

Additional parameters can be added to SNiP-SI42, 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-421 has an SDI-12 digital output and comes with an 18 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