Radiometer ABL90 Flex Plus Blood Gas Analyzer ABL 90 This analyzer powers on and I can get the display to advance to several screens, and the printer works fine. After it boots up a warning of "Operator Intervention Required" pops up. Please look closely at the pictures to see other warnings on the screen. I haven't been able to test this any further and I am offering it AS-IS. There are some scratches on the screen (see last picture) and there is a missing plastic cover piece on the front. F5-4 fdk 80820258 "The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item."