We've developed an Industry 4.0 solution featuring an industrial IoT platform for real-time spray monitoring in diverse industrial settings, including hazardous locations. This platform enhances manufacturing efficiency by providing immediate feedback and facilitating data-driven decision-making. Our hardware, certified for Class I, Division 1, images and characterizes multi-phase systems in extreme environments, seamlessly integrating into any production line. Supported by custom data analytics software, our technology optimizes processes by generating real-time data, while the network-based sensor enables remote control and access. The incorporation of AI capabilities further enhances data analytics for spray optimization.