Danaher is a well-diversified industrial and medical conglomerate whose products test, analyze, and diagnose. Its subsidiaries design, manufacture, and market products and offer services geared at worldwide professional, medical, industrial, and commercial markets. Danaher operates through five segments: Life Sciences & Diagnostics (research and clinical tools), Test & Measurement (electronic measurement instruments), Industrial Technologies (product identification, motion control equipment, and sensors), Environmental (turbine pumps and air/water analysis and treatment equipment), and Dental (orthodontic bracket systems and lab products). In a milestone transaction, Danaher acquired Pall Corp. for $13.6 billion in 2015.