The Pfeiffer Vacuum A 100 L ES (Energy Saving) dry pumps offer pumping speeds of 100 m3/h, while putting an accent to the cost-effectiveness. They contain a ES module that enables energy saving up to 50%. The design is compact, lightweight, and contains a water cooling circuit. The pumps also have and hour counter, three color LED for status information, and interface connector with 16 or 19 pins that enable various I/O connectivity options, as well as an optional RS232 and RS485 serial interface, that enables various control and monitoring processes.