The E-Lite is a single meter run, custody flow computer for Liquid or Gas Application featuring: One RTD Input OR Two 4-20mA Analog Inputs; One RS-232/RS-485 Communication Port (2nd port is available with a WDS Upgrade); and an EXP Expansion is available to add: Two 4-20mA/1-5VDC Analog Inputs; Two 1-30VDC Analog/Status/Frequency Inputs; and Two Digital/Switch Output & One 4-20mA Analog Output.