The EV and Phase3 meters were the first fully electronic models offered by GE. The EV meters were plug-in replacements for existing electromechanical polyphase meters and used register modules based on registers GE was already making for their electromechanical meters (the M-90E module was based on the M-90 register etc.). The Phase3 series of meters had the same basic technology as the EV meters but had advanced registers that took full advantage of this new metering technology and its ability to take measurements formerly done by separate external equipment.

Both the EV and Phase3 meters were built in socket, A-base, and switchboard versions (the switchboard version of the EV was labeled the ES). Unlike present solid-state meters with wide-ranging power supplies, these meters were built to specific supply voltages (120V, 240V, etc.) and are similar in size and weight to standard electromechanical polyphase meters. On the EV and ES meters, the V-60 numbering scheme was carried over (the EV-3 was the same as the V-63S etc.), and the single-phase style of the EV was simply numbered EV-1. Both the Phase3 and EV meters have been discontinued in favor of the more versatile kV and kV2 meters.