1. Sensors are devices that detect and respond to various physical phenomena. They play a crucial role in gathering information from the environment. 2. Different types of sensors can measure parameters such as temperature, pressure, light, and motion. This enables accurate data collection for different applications. 3. Sensors are widely used in industries like manufacturing, automotive, and care. They help in process control, quality assurance, and patient monitoring. 4. Their ability to provide realtime data allows for timely decisionmaking. For example, in a smart building, sensors can adjust the lighting and temperature based on occupancy. 5. Advancements in sensor technology have led to smaller, more efficient, and more accurate sensors. This has expanded their applications in emerging fields such as the Internet of Things. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.