ATL Ultramark 400C (UM400C)

3 references catalogued for the ATL Ultramark 400C (UM400C). Open the model page for its failure modes and what an assessment needs. Most of these come from ATL. Types catalogued: convex and endocavity. On these, lens delamination across the curved window is the failure mode we see described most often. Send the full probe label photo along with the console model — revision differences matter for the assessment.