The Ci4000 Weather-Ometer, with its advanced digital control system, represents monumental achievement in applying digital and optical technologies in an easy to use laboratory weathering instrument. The Ci4000 is approved by many OEMs in the automotive, paints and coatings, and plastics industries as the exclusive platform to deliver accurate, reproducible and repeatable results for predicting service life. The Ci4000 has been certified CE, UL, CSA, ISO and EN compliant.