Smart Citizen Water/Soil Station


The Smart Citizen Water/Soil Station has been developed by the Fab Lab Barcelona | IAAC. The team develops tools for environmental monitoring and methodologies for community participation and co-creation. The core of the hardware ecosystem is the Smart Citizen Kit (SCK), which refers to the different variants of devices that have a Data Board ( All options include a battery, a 16Gb SD-card and can be charged either with a USB power supply or an outdoor rugged power supply (options for 3m EU or UK cables are also available). Different probe types (with different performing grades) and additional options for cable lengths are available. To secure the SCK units and batteries, standard weatherproof boxes are commercially available.

Monitored Parameters:

  • Soil Moisture
  • Water Quality
  • Hazards:

  • Droughts and heat waves
  • ✓ Relevant to the EWSS


    Minimum Quantity : 1


    Sensor Properties
    Accuracy (error of the measurements) Unit of measurement Data Refresh Time (mins) Wi-Fi Connection 4G Connection External Power Supply Documentation
    Temperature +/- (0.15 + (0.002*t)); Conductivity +/ – 2%; Dixolved Oxygen +/– 0.2 mg/L; pH (Grade A/Spear Tip) +/- 0.002; pH (Grade B) +/- 0.1; ORP (Grade A) +/– 1mV; ORP (Grade B) +/– 1.1mV; Soil Moisture +/– 10% rh Temperature ̊C; Conductivity PSI; Dixolved Oxygen mg/L; pH -; ORP mV; Soil Moisture % rh 1 True False True See available docs for Smart Citizen Water/Soil Station
    Reference Partners Project Name Project Year Reference Paper Minimum Purchase Spatial Density
    UCD/ATU Smart Citizen 2012 Reference paper 1 1
    Purchase operations complexity Assembly/Calibration Operations Complexity Deployment operation Complexity Deployment Cost Data Analysis Operations Complexity
    Difficult Difficult Medium Difficult
    Citizen Science Activities Complexity Assembly Public Involvement Deployment Public Involvement Data analysis Public Involvement Target Users
    Neutral Sensor calibration requires basic lab equipment (e.g., soft brush, distilled water, lab wash bottle, etc) and a basic knowledge of the Arduino software (IDE). Calibration solutions are provided by the supplier. Calibration process will need to be repeated at a regular basis depending on the sensor. A custom enclosure will need to be designed/assembled based on the local conditions. A 3D printed probe holder can be provided and housing material (e.g., water pipes) can be used to create the enclosure. Public involvement is needed to find well-distributed locations to deploy the smart citizen kits (SCKs) inside the study area. SCKs can be installed in lakes, streams, and private groundwater wells connecting them to the existing power grid (or using marine batteries to power the units), and to available Wi-FI networks (or using low-cost 4G modems and cheap 4G data packs). SCKs can measure the chemical composition (pH, ORP, DO and EC) and water temperature at a minute scale. These measurements are helpful to identify and investigate sudden and long-term changes in the water quality with the catchment and/or study area. The above-said parameters can act as indicators for a vast area of environmental and hydrological scenarios related to pollution (mainly man-made). Public involvement is limited in the analysis process, but it can give insight into understanding the pollution scenarios. local groups; local authorities; schools


    The kit is available in various customised versions, ranging from €1700 (pH, Temperature, and Conductivity) to €3000 (pH, DO, Conductivity, ORP, and Temperature). UCD and Dublin CCLL are ready to provide their support in identifying the most suitable options.

    UCD and ATU (Dublin and Sligo CCLLs) are actively testing multiple options, including recharging an external power bank and utilizing advanced solar panels with high conversion efficiency. The results of these prototyping efforts will be shared shortly. For additional details on the power consumption of the kits, please visit the following website:

    "In locations where Wi-Fi connection is not available, a mobile router is required to send the data in real-time. Several solutions are currently being tested.

    Additional costs may include 3D printed enclosure, waterproof IP65 enclosure, outdoor power supply, pocket Wi-Fi and data plans for the SIM card, poles and pipes to host the probes and electrical components. UCD and ATU are ready to provide their support in identifying the most suitable options.

    The supplier for this device is Fab Lab Barcelona For interested parties, UCD can provide the contact with the purchase service.

    Additional pictures