EZ Meter products are low cost meters for simple measurements of kilowatt hours. The EZ Cube meters are capable of demand and power quality measurements. EZ Cube reports true RMS values for volts, amps, hertz and power factor while EZ Meter reports the average values for the prior 64 cycles resulting in approximate values rather than true values. Both meters accurately report watts and kilowatt hours.
EZ Cube is auto-ranging as to voltage and system configuration while the correct EZ Meter must be ordered for the voltage and configuration, single or three phase, with or without a neutral, wye or delta (high leg).
Additionally, an EZ Cube can accept any compatible current transformer (CT) while the EZ Meter is matched to a particular CT.
Download the comparison sheet here.