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


The SNiP-SPW2 is a 'Sensor Node Integrated Package' for LoRaWAN or CAT-M1 communication of real-time plant diameter measurements in relation to real-time weather parameters and Volumetric Soil Water VSW% content (based on capacitance technology) for continuous plant monitoring.


The base SNiP-SPW2 integrates 1x S-NODE and three sensors to a site’s unique network, communication and power requirements: 1x DBS60 Band Dendrometer, 1x Atmos-14, 1x EP100GL-08 EnviroPro (80cm Length).

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

The Atmos-14 monitors microclimate and evapotranspiration via the measurement of Relative Humidity, Barometric Pressure, Air Temperature, and Vapor Pressure with or without a passive radiation shield.

TheEnviroPro EP100GL-08 (80cm) or EP4 (40cm) with internal sensing points at 10cm intervals, provides measurements of Volumetric Soil Water % (VSW), and soil temperature.


See Further Specifications on the S-NODE

See Further Specifications on the DBS60 Band Dendrometer
See Further Specifications on the ATMOS-14
See Further Specifications on the EP100GL-08 EnviroPro

The modular nature of ICT International SNiPs allows for SNiP-SPW2 to be extended with alternative or further parameters – without requiring unique loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application. The S-NODE can support 1x additional SDI-12 sensor to the base SNiP package.


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

DBS60 Band Dendrometer

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.

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


Increment sensors type
rotary position
Range 64 mm of circumference
2% of full scale
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
ca 260 g
Minimal stem diameter
8 cm
Increment range
Tightening strength 15 to 20 N



(Note: The Decagon VP-4 has been replaced by the Meter ATMOS 14).

  • Microclimate measurement made simple
    If you’re doing a microclimate or evapotranspiration study, you may need up to four extra sensors to get important measurements that will benchmark your data. Not to mention you have to face the hassle of getting all those sensors integrated into your system. What you need is something simpler. With this in mind, we engineered the ATMOS 14 to be four sensors in one—air temperature, relative humidity, barometric pressure, and vapour pressure.
  • With the ATMOS 14, all your bases are covered
    Thousands of engineers and ecologists already depend on the ATMOS 14 for straightforward measurements. Whether you’re using the EM60G to look at plant emergence, leaf area index, or fractional interception, there isn’t an easier way to benchmark your data. The ATMOS 14 is a versatile, low-maintenance, and fast sensor designed to make taking temp/RH measurements simpler and therefore less work.
  • Plug it in, and walk away
    Despite its minimalist design, the ATMOS 14 provides maximum value. While other sensors require wiring and programming, the ATMOS 14 simply plugs into the EM60G (It’s also compatible with third-party data loggers). There’s no having to figure out complicated instructions. Just mount the sensor on your data logger mast, plug it in, and walk away.
  • Measures a lot. Requires very little effort.
    The ATMOS 14 is low-maintenance. It gives accurate vapour pressure and RH without a lot of cleaning. Plus it’s weatherproof, meaning it will last a long time in the field. Another helpful feature is the compact shape that fits into tight spaces, leaving room on a mast for other sensors.
  • Readings don’t get any more rapid
    Because the ATMOS 14 is plug and play, setup is quick. And responses are equally fast. Thanks to a Teflon protection screen that keeps liquid water out, but vapour moving freely through, it responds rapidly while keeping dust and liquid water off the sensor. Both features add up to time saved on your part.
  • For everything it measures, there’s not much to it
    With ATMOS 14, all your basic microclimate measurements are covered using a small, simple integrated sensor. This versatile, low-maintenance sensor will rapidly and reliably measure air temperature, relative humidity, barometric pressure, and vapour pressure, making benchmarking quick and hassle-free.
RANGE 0 to 100% RH
ACCURACY Sensor measurement accuracy is variable across a range of temperatures.
Refer to the chart in Figure 1 to determine the accuracy specification for the ATMOS 14 sensor.
(τ, 63%):
< 40 s (response time in 1 m/s air stream)
HYSTERESIS < 1% RH typical
LONG TERM DRIFT < 0.5% RH/year typical
RANGE -40°C to 80°C
ACCURACY Sensor measurement accuracy is variable across a range of temperatures. Refer to the chart in Figure 2 to determine the accuracy specification for the VP-4 sensor
(Τ, 63%)
< 400 s (response time in 1 m/s air stream)
LONG TERM DRIFT < 0.04°C / year typical
RANGE 0 to 47 kPa
ACCURACY Sensor measurement accuracy is variable across a range of temperatures and RH. Refer to the chart in Figure 3 to determine the accuracy specification for the VP-4 sensor.
RANGE 49 to 109 kPa
DIMENSIONS 1.96 cm (dia) x 5.4 cm (h)
POWER REQUIREMENTS 3.6 to 15 VDC, 0.03 mA quiescent, 4 mA during 300 ms measurement
OUTPUT Decagon Digital or SDI-12
CONNECTOR TYPES 3.5 mm (stereo) plug or stripped and tinned lead wires (pigtail)
CABLE LENGTH 5 m standard; custom cable length available upon request
Meter/Decagon: Em50 Series (Firmware 2.19+)
ICT SDI-12 logger, AML, AWS, Universal Telemetry Hub
Campbell Scientific: Any logger with serial I/O
DataTrac (rev 3.11+)

VP4 Humidity Acc

VP4 VP Acc

Temperature Acc VP4


EnviroPro EP100GL-80 (80cm Length)

EnviroPro® sub-surface Soil Probes have been carefully engineered to be accurate, long-life, maintenance-free instruments suitable for all soil types. Their design employs clever techniques to correctly compensate moisture measurements for variations in salinity, as well as compensating moisture and salinity measurements for temperature variations, something not observed in any competitor probes.

  • Sensors located at 10cm vertical intervals
  • Easy field installation
  • SDI-12 V1.3 compliant
  • Interfaces to all SDI-12 compliant digital loggers
  • CE, RCM and FCC EMC compliant
  • Suitable for all crop root depths
  • Facilitates fertiliser optimisation
  • Designed and made in Australia
  • Set-and-forget maintenance free
  • Optional SDI-12 to RS-485 converter
  • Wide range 6 to 15 VDC auxiliary supply
  • Temperature-compensated measurements
  • Salinity-compensated moisture measurements
  • 5 year warranty
  • RoHS Compliant


Moisture resolution: 0.01%
Salinity resolution: 0.001 dS/m
Temperature resolution: 0.01°C
Moisture accuracy: +/- 2% @ 0% VWC to 50% VWC
Useable salinity range: 0 to 6 dS/m*
*Upper limit of non-contact capacitance sensors
Salinity accuracy: +/- 5% @ 0 to 4 dS/m
+/- 5% @ 10% to 30% VWC
Temperature accuracy: +/- 1°C @ 25°C
Units of Measure
Moisture: Volumetric Water Content %
Salinity: dS/m ECe
Temperature: °C or °F
Operating and Electrical Specification
Interface: SDI-12 version 1.3
Wiring: Red: +6 to +15VDC
Black: Ground
Blue: Data
Yellow: Not connected (reserved for future use)
Power Supply: +6 to +15 VDC
Reverse voltage and lightning protected
Operating temperature: -20 to +60°C
Power Consumption
Sleep: 0.1mA per sensor (0.4mA for 4 sensor probe)
Active current: 1mA per sensor (4mA for 4 sensor probe)
Measurement current: 64mA @150ms per sensor

Available in 40, 80, 120, and 160cm lengths.