Monitoring devices are tools used to observe and track specific conditions or activities. They can measure various parameters such as temperature, heart rate, or air quality. Common examples include fitness trackers, thermometers, and smoke detectors. These devices help individuals and organizations ensure safety, maintain health, and improve efficiency. In many cases, monitoring devices are connected to smart technology, allowing users to receive real-time data on their smartphones or computers. This connectivity enhances their functionality, enabling remote monitoring and alerts. Overall, monitoring devices play a crucial role in personal health, environmental safety, and industrial applications.