Broadband UV biometers and pyranometers are usually used to measure and monitor ambient solar UV radiation. These instruments measure global solar UV radiation on a flat surface from the entire hemisphere of the sky.
In South Africa, several universities and science councils have equipment to monitor ambient solar UV radiation levels. The South African Weather Service maintains a network of solar UVB biometers under its Global Atmosphere Watch regional research and monitoring programme.
UV Sensors are now being used in South Africa to assess individual's sun exposure for a variety of outdoor activities. The two figures are of the UV sensors and the second is a graph of solar UV exposure for a school child in Pretoria.