IoT enables predictive maintenance by using smart sensors and connected devices to monitor the real-time condition of equipment. These sensors collect data on parameters like temperature, vibration, and pressure, which are then analyzed to detect early signs of wear or malfunction. This approach helps in predicting failures before they occur, reducing unexpected downtime and maintenance costs. By continuously tracking equipment health, businesses can schedule timely repairs and extend the lifespan of assets. Learning these techniques can be highly beneficial through an IoT certification course.