The hand-held Hönle UV-METER measures exact data that is traceable to the German standard PTB (Physikalisch Techni- sche Bundesanstalt). The unit is available as a basic or high- end version. Different sensors cover wavelengths from 230 nm to 550 nm - UVC, UVB, UVA and VIS. The UV-METER with its wide range of interchangeable sensors makes it suitable for different manufacturing processes. Sensors are available both for UV point sources and surface irradiation equipment.