<![CDATA[Production processes in traditional blacksmith workshops often neglect Occupational Health and Safety (OHS) due to unmonitored exposure to smoke, dust, and extreme temperatures. This program aims to enhance workplace safety at Dapur Setiawan, Tulungagung, through the development of an Internet of Things (IoT)-based environmental monitoring system. The system is designed to monitor dust concentration, smoke levels, room temperature, and furnace temperature in real-time via an Android application. The development methodology included hardware design using integrated sensors, Firebase database synchronization, and functional testing. Evaluation results showed that all sensors operated accurately, with responsive danger notification systems and buzzers. Field evaluations revealed that while temperature and smoke levels remained normal, dust concentrations during production hours reached "unhealthy" levels. The implementation of this technology allows partners to monitor working conditions precisely and rapidly, providing a data-driven basis for improving ventilation systems to minimize workplace accidents and occupational diseases.]]>
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