Electromagnetic field (EMF) meters are devices used to measure the strength and frequency of electromagnetic fields in the environment. These fields are produced by various sources, including electrical appliances, power lines, and wireless communication devices. EMF meters can help identify areas with high electromagnetic exposure, which some people may want to monitor for health or safety reasons. There are different types of EMF meters, including gaussmeters and RF meters, each designed to measure specific ranges of electromagnetic radiation. Users can find these meters in various settings, such as homes, workplaces, and during environmental assessments, to ensure compliance with safety standards.