Used to measure the irradiance, so the specific light intensity of UV-C sources such as: traditional low-pressure UV-C lamps 253.7nm, traditional medium-pressure UV-C lamps, UV-C lamps Excimer 222nm, 185nm, 172nm and UV-C LED lamps 255-280nm.

The measurement takes place instantly and the values can be viewed on the LCD display. On some models you can choose the measurement scale with a selector, while other models are “autorange”.

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