Caption: The Model 521 is a 5 channel hand-held ozonometer for measuring total ozone column per standard WMO configuration easily, accurately and dependably. Credit: Solar Light Company, LLC Related Press Releases Solar Light Company, Inc. Announces Updated Microtops II Ozonometer Link to this Photo Email & IM: Direct Link: HTML Code: IMG Code: Download Photo High Resolution Screen Resolution Medium Resolution Small Resolution Thumbnail Resolution Download Photo Information Source: Solar Light Company, LLC Release date: Thursday Mar 15, 2018 Release time: 08:56 am City:: GLENSIDE State:: PA Country:: United States of America [US] Width:: 1200px Height:: 800px Size:: 52 KB Share