Anyone working in or nearhigh intensity electromagnetic fields (EMF), such as radar antennas, broadcast transmitters, or cellular base stations, must be able to control their exposure from EMF/RF Radiation emitted from these RF transmitters. The best way to control exposure from potentially dangerous RF Radiation is a wearable RF monitor or Personal safety equipment (PSE) which produces a warning when critical EMF/RF values are close to or have exceeded the limit for human and safety.