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GoodWe Smart Meter GM1000 vs IAMMETER WEM3080

Install fit
Phase support Single-phase Single-phase
Installation DIN-rail mounted single-phase smart meter with one included current transformer DIN-rail mounted energy meter with external split-core current transformer
Measurement CT-based single-phase smart meter for voltage, current, power, and energy monitoring in GoodWe inverter and export-control setups Single-phase bidirectional energy meter
Max current 120 A Unknown
Nominal voltage Unknown 80-265 VAC
Meter fit
Accuracy class Class 1 (voltage/current and active energy) / Class 2 (reactive energy) Unknown
Current sensing 1 x 120A:40mA CT included 1 x split-core CT; 150A standard with 250A option on the official product page
Monitoring
Protocol RS485 Wi-Fi / HTTP API / MQTT / TCP / TLS
Local API No Yes
Cloud dependency GoodWe SEMS and the compatible inverter ecosystem are typically used for normal monitoring, export-control workflows, and energy-management visibility. Optional cloud; IAMMETER-Cloud is available, but open APIs and third-party integrations are supported.
Home Assistant No Yes
Solar fit
Solar import/export Yes Yes
Buying context
Price range Unknown About USD 68-$88 depending on channel and timing
Availability North America official page / broader global GoodWe family availability Global
Source check
Last verified May 19, 2026 May 18, 2026
Product page Official page Official page
Documentation Official docs Official docs