In this video, we take a focused look at the MR-ACT Smart City System—a military-grade gas detector built for continuous urban air monitoring. You'll see how its 5km coverage range, real-time pollution tracking, and weather-resistant design work together to detect traffic emissions, identify pollution hotspots, and support public health in smart city environments. We explain the technical specifications and demonstrate how this system integrates with city networks for live data visualization and emergency alerts.