Portable speed meters are devices used to measure the speed of moving objects, such as vehicles or athletes. They are compact and lightweight, making them easy to carry and operate in various locations. These meters often use radar or laser technology to accurately capture speed readings in real-time. These devices are commonly used by law enforcement, sports coaches, and event organizers. For example, police may use portable speed meters to monitor traffic speeds, while coaches can utilize them to assess the performance of athletes during training sessions or competitions.