... )SELECTABLE SELECTABLE 4-20mA,0-20mA,0-50mA,any other DC voltage or current can be orderedOutputRelay,S.S.R DRIVE ... (DC 20 V),4-20mA,0-20mA,0-5V,0-10V, ... PHASE CONTROL *RS232&RS485 INTERFACE *PROGRAMABLE PROCEDURE CONTROL CONTROL Pulsator Controller