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

SNiP-DBS4

The SNiP-DBS4 is a 'Sensor Node Integrated Package' for LoRaWAN or CAT-M1 communication of real-time plant diameter measurements for continuous plant monitoring.

The SNiP-DBS4

The base SNiP-DBS4 integrates 1x S-NODE and 1x DBS60 Band Dendrometer With Modified Fixing Plate to a site’s unique network, communication and power requirements. The S-NODE can support an added 3x DBS60 Band Dendrometer devices.

The DBS60 Band Dendrometer is an SDI-12 Band Dendrometer designed to measure short- and long-term changes in stem circumference, with the modified fixing plate allowing the package to monitor trunks with a minimum diameter of 40mm.

 

See Further Specifications on the S-NODE
See Further Specifications on the DBS60 Band Dendrometer With Modified Fixing Plate

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 SDI-12 sensors to the base package; see other IoT Nodes to include further sensor extensions in a custom Sensor-Node IoT Package.

The DBS60 Band Dendrometer is used to measure short and long term changes in stem circumference, designed for stems with a diameter greater than 8cm. The DBS60 is highly accurate, with a measurement resolution of 1µm (0.001 mm). The DBS60 is IP-65 rated and is designed to measure stem changes over many years.
The DBS60 is a non-invasive measurement device attached to the stem with an inextensible stainless steel band. The stainless steel band has a linear thermal co-efficient of 17.3 x 10-6 per °C. Therefore thermal variations caused by daily or seasonal changes in temperature have no measurable impact on the operation of the DBS60.

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, Single use LiSOCl2, 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

 

DBS60 Band Dendrometer With Modified Fixing Plate

The DBS60 is an SDI-12 Band Dendrometer designed to measure short- and long-term changes in stem circumference.

The DBS60 SDI-12 Band Dendrometer is similar to the DBL60, but has a cable for the connection to a SDI-12 Data Logger.

Outputs:
Change in Tree Circumference (mm)
Temperature (°C)

 

Increment sensors type
rotary position
Range 64 mm of circumference
Linearity
2% of full scale
Resolution
step-less
Tape strength
15 to 20 N in the whole range, stem diameter independent
Tape temperature coefficient:
17.3 x 10-6 per °C
Operating range:
   – Temperature
-30 to 60°C
   – Humidity 0 to 100%
Size 100 x 70 x 100 mm
Weight
ca 260 g
Minimal stem diameter
8 cm
Increment range
65mm
Tightening strength 15 to 20 N