The CR-10 radiometer was specially developed for calibrating the solar eye lrradiance control system. Like all radiometers,the cr-10 measures the amount of light falling ona unit of surface area. It can be used to measure either UV-A or UA-B lamps in the CR-10 and Autocal, you calibrate your system in seconds.
The CR-10 is a necessary accessory to the QUV`s solar eye system. However, you can use one, single CR-10 radiometer to calibrate any number of solar Eyes.