SINGLE PHASE 5-30A, 10-60A Salient Features Instantaneous Start. Low Power Consumptions less than 1 wt. saving of more than 30% over conventional meters Meter records correct energy with same accuracy under reverse current connection. LCD/LED’s indication for current reversal tampering and phase availability. Optional : Optical port/RS 232 communication for LCD Meter. An ISO-9001 : 2008 Company Meter with optical port are suitable for AMR application.