GE I-70-S KWH Meter ERC Sealed Analog Type CL100 I70S 2W, KWH CL200 3W ERC Approved and Sealed. An electric meter, or energy meter, is a device that measures the amount of electric energy consumed by a building, tenant space, or electrically powered equipment. Electric utilities use electric meters installed at customers' premises to measure electric energy delivered to their customers for billing purposes. FM2S-I70S KILOWATTHOUR METER CLASS 100, 3WIRE, SINGLE PHASE, 2W, 100AMPS, 240VOLTS, ROUND BASE FM2S-I70S2 KILOWATTHOUR METER CLASS 200, 3WIRE, SINGLE PHASE, 3W, 200AMPS, 240VOLTS, ROUND BASE G.E. I-210 Kilo Watt Hour DIGITAL CL-100 240v 2W with LCD Display ERC Calibrated See pictures of actual item.