Enercon systems supplies has recently launched electronic single and three-phase energy meters. , model dm 5210 and dm 5240 are the two models of this static energy meter. This static energy meter finds its application in, for electricity billing. These meters work unaffected under phase and neutral interchange, change of phase sequence, reversal of current, earthed load partially or fully and external magnetic influence. Following are some of the technical features of this static energy meter which includeeatures: state-of-theart smd technology; complies with is:13779 standards; widest working voltage range; very low burden even at 300 v input; universal whole current 5 a 30 a or 10 a 60 a [400% overload standard]; accurate billing due to additional built-in register while supply switching off; equivalent of 7 digit display; instantaneous start; led tamper indication; current reversal; earthed load tamper; sealed dust proof construction; built in transient protection; compact size; and hinged terminal cover. Larger meter constant for faster testing; true rms measurement; accurate even under harmonic condition; accuracy class 1.0 and 2.0 is 13779, iec 1036; sustained accuracy over working voltage and frequency range; simultaneous sampling of volts and amps; instantaneous start; led tamper indication; current reversal; earthed load tamper; sealed dust proof construction; built in transient protection; compact size; and hinged terminal cover.