Automatically control output from a distance using a variety of analog and digital signals, including 4-20mA and external pulse signals. Pumps can also be controlled manually, run on a schedule, or set to cycle on and off. View flow rate on the LED display. These pumps handle pressures four times higher than standard pumps. They meter a consistent amount of liquid within ±1% of the maximum flow. Often used in boiler feed systems and water treatment, they're compatible with chemicals such as cleaning fluids and acid-washing solutions. Pumps are self-priming and create suction to draw liquid upward. They can run dry.