Detection of micro-bubbles or free-floating bubbles is critical in lab automation processes. Balluff's micro-optic MICROmote sensors utilize patented technology to solve these difficult applications. These sensors can detect bubbles smaller than the tubes inner diameter, smaller than 10 µm in diameter in capillary tubes, bubbles that are smaller than the human eye can see. The sensor can detect micro-bubbles as they enter a uniform illumination created by a concentrated arrangement of multiple light beams. Couple these sensing heads with remote amplifiers with multiple output options and easy setup to form a reliable detection sensor.