Integrated Soil Oxygen Monitoring Station - IC-SNiP-SO2-A
The SNiP-SO2 is a 'Sensor Node Integrated Package' for LoRa, LoRaWAN, FSK or CAT-M1 communication of real-time soil oxygen measurement for continuous soil monitoring.
The base SNiP-SO2 integrates 1x MFR-NODE and 1x ICTO2 Soil Oxygen Sensor to a site's unique network, communication and power requirements. The MFR-NODE can support an added 3x ICTO2 Soil Oxygen Sensors to monitor soil moisture at multiple depths.
MFR-NODE
The Multifunction Research Node has been designed to provide flexible communication, sensor and power options.
The MFR-NODE supports SDI-12 and 2 x dry contact digital inputs as well as optionally 2x differential / 4x single ended analogue inputs. The MFR-NODE supports 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). Optional CAT-M1 provide an option for remote installation and in areas outside the range existing LoRaWAN networks. The optional multiconstellation GNSS ensures you won't lose track of your device.
The MFR-NODE has an onboard 8GB SD Card to provide data logging capabilities and full data redundancy in the event of temporary loss of communications or dropped packets; ideal for research applications.
- LoRaWAN low-power long-range connectivity
- 8GB SD Card for data storage
- Supporting SDI-12, 2 x 32-bit dry-contact counting digital inputs.
- Optional 24-bit ADC for 2x differential / 4x single ended sensor.
- Optional CAT-M1
- Solar rechargeable Lithium-ion or external 12V power options
- Optional Multi-constellation GNSS
- External solar/battery input: 12-32V DC.
ICTO2 Soil Oxygen Sensor
The ICTO2 Soil Oxygen Sensor performs measurements based on a Galvanic cell principle. Therefore it is a passive sensor and does not require voltage input. The sensor has an automatic temperature compensation via an in-built thermocouple compensation circuit. The sensors are Teflon coated and made from long lasting plastics. Life expectancy in the field is five years.
- Can be used for long term observation with easy set-up.
- Automatic temperature compensation as it has a built in thermocouple compensation circuit.
- Not influenced by the rain or water. TEFLON water protection.
- Easy span calibration. Users can calibrate at the usual atmosphere (20.9% Oxygen concentration).
- Zero calibration is not needed. 0% Oxygen = 0 mV output.
Specifications
- Theory: Galvanic battery + porous membrane sheet
- Shape: Diameter 35 mm, length 65mm (cable connector length 50mm)
- Output: 45 to 65 mV at 20.9% O2 (users must check the output of the air before set-up)
- Accuracy: +/- 0.5%
- Weight: 220 grams (includes 5m cable)
- Cable Length: 5 m (+ white, black, shield cable)
- Temperature effect: At R.H. 100% and O2 20.9%. Sensor output is 20.8% at 5 C, 19.4% at 40 C. At R.H. 0% and O2 20.9%. Sensor output is not Influenced by temperature.
- Temperature: 0 to 40 C when in use
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