Alexis® small peristaltic pumps can either run on a self-contained internal 20 amp AGM battery or 110 volt electric socket. And at only 21 pounds, these micro peristaltic pumps are lightweight and extremely durable. The rugged Pelican™ 1430 case enclosure is made of impact and corrosion resistant ABS plastic to withstand demanding work conditions. Incorporating the most accurate and precise Variable speed controller for consistent flow rates ensures the technician reliable sample integrity. Alexis® small peristaltic pumps include a built-in digital display and sealed push buttons to control each of the micro peristaltic pumps.