The Eco-Monitoring System by Sena Traffic Systems (STS) is an advanced IoT-enabled solution designed to address two critical urban challenges: air pollution and flooding. Integrating state-of-the-art sensors for air quality (PM2.5 and PM10), wind direction, temperature, humidity, outdoor brightness, and waterway levels, the system provides municipalities with localized, real-time environmental and flood data. Powered by the Renesas RA6M3 RT-Thread HMI board and running on the RT-Thread OS, the solution ensures high-performance data processing and low power consumption. Its Malaysian-developed software and end-to-end localized assembly design make it uniquely tailored to the country's urban management needs while promoting sustainable development. The system's modular design and IoT integration enable seamless deployment at scale, forming a network capable of delivering granular insights into environmental conditions and flood risks. The user-friendly web-based dashboard provides real-time data visualization, automated alerts, and actionable analytics, empowering municipalities to proactively mitigate pollution hotspots, manage flood risks, and enhance public safety. By combining robust technology with localized innovation, the Eco-Monitoring System positions itself as a key enabler of Smart City initiatives, advancing Malaysia’s leadership in sustainable urban solutions and fostering a safer, more resilient future.