NRG-96 Electrical Power Analyzer Low cost four line LCD Display. This product displays volts, Amps, Kw, KvarL, KvarC, % THD Volts, % THD Amps, PF, Hz, KWHr, KvarhL and KvarhC Models: NGR-ITF-240 M51900 - Single or Three Phase Power Analyzer NGR-ITF -240-RS485-C M51911 - same as above with modbus RS485 and 1 Relay