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Low-Cost Water Quality Sensors for IoT: A Systematic Review
Edson Tavares de Camargo1,2, Fabio Alexandre Spanhol1,2, Juliano Scholz Slongo1
1Federal University of Technology-Parana (UTFPR), Toledo 85902-490, Brazil.
Sensors (Basel, Switzerland)
|May 13, 2023
Summary
Low-cost sensors offer accessible water quality monitoring. Further research is needed to confirm their accuracy and reliability compared to professional devices.
Area of Science:
- Environmental Science
- Sensor Technology
- Water Resource Management
Background:
- High costs of professional equipment limit water quality monitoring globally.
- Internet of Things (IoT) integration with low-cost sensors enables real-time environmental monitoring networks.
- Public access to valuable water quality data is crucial.
Purpose of the Study:
- To identify low-cost sensors for remote water quality monitoring.
- To determine key water quality parameters measured by these sensors.
- To assess sensor manufacturers and their environmental reliability.
Main Methods:
- Systematic literature review of studies using low-cost water quality sensors.
- Analysis of sensor types, vendors, and price ranges.
- Evaluation of sensor suitability for remote monitoring.
Main Results:
- Three primary vendors dominate the low-cost sensor market.
- Sensor prices range from $6.90 to $500.00.
- Limited comparative studies exist between low-cost and reference devices.
Conclusions:
- Low-cost sensors show promise for widespread water quality monitoring.
- Further research is essential to validate the accuracy and reliability of these sensors against professional devices.
- Ensuring data integrity is key for public trust and effective water management.
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