Industrial sensors are devices that detect and measure physical parameters—such as temperature, pressure, position, level, flow, or proximity—and convert them into signals for monitoring and control. They are essential in manufacturing, automation, and process industries, enabling real-time data collection to ensure efficiency, safety, and quality. From inductive and capacitive sensors to ultrasonic, optical, and pressure sensors, each type is designed for specific applications, operating reliably in challenging environments such as high heat, vibration, or contamination. By providing accurate and consistent feedback, industrial sensors form the backbone of modern smart factories and predictive maintenance systems.