The UVP® UVX™ digital radiometer is designed for use with any one of three interchangeable sensors (ordered separately) for measuring 254nm, 365nm and 302nm UV wavelengths. The chart recorder port, standard on the UVX, allows for continuous monitoring. UVX's range switch provides selection from three intensity ranges - 0 to 20mW/cm², 0 to 2000µW/cm² and 0 to 200µW/cm². A 10:1 attenuator (sold separately) extends the reading range upto 200mW/cm². Powered by a 9V battery for upto 120 hrs. Includes a port for attachment of a chart recorder (sold separately).