In this paper, we propose a practical IoT-based industry automation system utilizing the ESP32 microcontroller and various sensors, such as PIR, smoke, fire, and humidity/temperature sensors. The system aimed to overcome challenges faced by the previous manual monitoring system and enhance operational efficiency and safety measures in industrial environments. The previous system's limitations included manual monitoring, delayed responses, and increased human error. Real-time data collection and analysis were absent, preventing proactive measures and prompt response to hazardous situations. To address these issues, we proposed an IoT-based automation system that streamlined operations, improved safety, and enabled real-time monitoring and control. Integration of sensors enhanced the system's capabilities. The IoT-based automation system offered several advantages. Real-time data collection and analysis enabled proactive monitoring and timely. Automated processes increased operational efficiency and productivity by eliminating manual intervention interventions, minimizing accident risks. Sensor integration improved safety by providing early detection and response to fire and gas incidents. These enhancements resulted in cost savings, reduced downtime, and increased overall effectiveness.