Pumps feature analog input and output controls, as well as an RS-232 interface for control by a computer. Remote control capabilities: RS-232 to control all operating functions (DB9 male); 0 to 5 VDC, 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA for start/stop and autostart via contact closure (DB15 male); foot switch (three-pin DIN port). Monitor speed via analog output.