Used to measure the irradiance, so the light intensity. The measurement takes place instantly, the values can be viewed on the LCD display, on some models you can choose the measurement scale with a selector, other models are “autorange” type.

UV Radiometers instruments are available in many versions to measure separately different parts of the Ultraviolet spectrum such as: UV-C 230-280nm, UV-B 280-315nm, UV-A 315-410nm, UV Diazo 350-460nm, UV-LED 380-420nm, UV-V 395-445nm or Full UV 230-410nm spectrum.

The radiometer instrument consists of a handheld unit connected to the sensor by a cable.