The Integra 1540 dms series provides programmable measurement, display and communication of up to 31 major electrical and power quality parameters including true rms system values, total harmonic distortion (THD) and power quality data. The menu-driven interface allows the programming of voltage, current, and power measurement parameters. Status of all parameters can be viewed through 13 screens on the thee-line, four-digit LED display. The Integra 1540 meter has pulsed and digital communication outputs.