A radiation meter is a device used to measure ionizing radiation levels in the environment. It detects different types of radiation, such as alpha, beta, and gamma rays, which can come from natural sources like cosmic rays or man-made sources like nuclear power plants. These meters are essential for ensuring safety in areas where radiation exposure may occur. Radiation meters come in various forms, including handheld devices and stationary monitors. They often provide readings in units like microsieverts or counts per minute, helping users assess radiation levels quickly. This information is crucial for professionals in fields such as nuclear medicine, environmental monitoring, and radiation safety.