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HomeWizard Energy Socket vs Carlo Gavazzi EM530

Install fit
Phase support Single-phase plug-in appliance circuit; socket-region dependent. Two-phase and three-phase systems up to 415 V L-L.
Installation Plug-in wall-socket energy meter and switch for compatible grounded outlets; no panel wiring or CT installation required. DIN-rail energy analyzer for electrical-panel installation with external current sensors.
Measurement Single-appliance inline plug-in power and energy measurement with switch control. Two- and three-phase energy analyzer for consumption and generation/import-export measurement.
Max current 16 A 10000 A
Nominal voltage Unknown 120-240 V L-N / 208-415 V L-L
Meter fit
Accuracy class Individually calibrated; HomeWizard lists 99.5% accuracy. Class B MID active energy; Class 0.5S kWh family positioning.
Current sensing Plug-in inline socket meter; no external CTs or current clamps required. External-sensor meter: CT 5 A, 333 mV sensor, or Rogowski-coil variants are documented.
Monitoring
Protocol Wi-Fi 2.4 GHz / Open API JSON / HomeWizard app Modbus RTU
Local API Yes Yes
Cloud dependency HomeWizard app/cloud is used for normal app setup, timers, dashboards and history; local Open API access is available on the same Wi-Fi network when enabled. No vendor cloud is required for core metering. EM530 exposes local wired data through RS485 Modbus RTU or M-Bus variants.
Home Assistant Yes Yes
Solar fit
Solar import/export No Yes
Buying context
Price range Unknown About $250-$500
Availability European HomeWizard store markets; plug type is combined edge/pin-earth for Netherlands/Belgium style grounded sockets, with regional shipping and currency options varying by country. Global Carlo Gavazzi and regional distributor channels; exact EM530 variants and approvals vary by country.
Source check
Last verified Jun 25, 2026 Jun 13, 2026
Product page Official page Official page
Documentation Official docs Official docs
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