Owon's P4603 1 channel programmable linear lab power supply with a high resolution of 1 mV and 1 mA, and a low ripple of 1 mV. This power supply has a clear 4 digit LED display to display the current and voltage and is equipped with automatic active cooling. It also has protection against overload, short circuit and overheating. The P4603 is programmable via SCPI and labview on the PC and it has an RS232 connection.