This paper discusses the potential and challenges of low-cost monitoring systems in urban water management. It highlights six key considerations for the effective deployment of such systems, including technical barriers, complementarity with traditional technologies, sensor reliability, added value of information, opportunities for data democratization, and economic and environmental costs. The authors emphasize the importance of systematic documentation and research to address current challenges and promote the widespread adoption of low-cost monitoring technology. They also stress the need for training and education to build capacity in the water sector and the importance of understanding the socio-technological aspects of these systems. The paper provides insights into the practical implementation of low-cost monitoring systems, their advantages, and the trade-offs involved, particularly in terms of data quality and cost-effectiveness. Additionally, it explores the broader implications of these systems for public information, education, and community empowerment.This paper discusses the potential and challenges of low-cost monitoring systems in urban water management. It highlights six key considerations for the effective deployment of such systems, including technical barriers, complementarity with traditional technologies, sensor reliability, added value of information, opportunities for data democratization, and economic and environmental costs. The authors emphasize the importance of systematic documentation and research to address current challenges and promote the widespread adoption of low-cost monitoring technology. They also stress the need for training and education to build capacity in the water sector and the importance of understanding the socio-technological aspects of these systems. The paper provides insights into the practical implementation of low-cost monitoring systems, their advantages, and the trade-offs involved, particularly in terms of data quality and cost-effectiveness. Additionally, it explores the broader implications of these systems for public information, education, and community empowerment.