Device Comparison
GoodWe GM3000 vs GMK110 vs IAMMETER WEM2067 vs WEM3050T
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Use this comparison when the shortlist mixes brand-native smart meters with more open local-integration meters and the right choice depends on ecosystem priorities.
| Install fit | ||||
|---|---|---|---|---|
| Phase support | Three-phase (3L+N/400Vac) | Single-phase (1P2W) | Split-phase / dual-phase / two independent single-phase circuits | Single-phase, split-phase, and 3-phase 4-wire WYE/Star systems |
| Installation | DIN-rail mounted three-phase smart meter with 3 included current transformers | DIN-rail mounted single-phase smart meter with one included current transformer | Panel-mounted energy meter with external split-core current transformers | 2P DIN-rail mounted Wi-Fi energy meter with 3 x 150A split-core CTs and an external antenna |
| Measurement | CT-based three-phase smart meter for voltage, current, power, energy, and export-limiting workflows in GoodWe systems | CT-based bidirectional single-phase smart meter for load monitoring and export-power control | Dual-phase / split-phase bidirectional energy meter | Bidirectional three-phase or split-phase Wi-Fi energy meter with active/reactive energy, power factor, and NEM-ready import/export monitoring |
| Max current | 120 A | 120 A | 150 A | 150 A |
| Nominal voltage | Unknown | Unknown | Unknown | 80-277 VAC (phase) / 140-480 VAC (line) |
| Meter fit | ||||
| Accuracy class | Class 1 (voltage/current and active power) / Class 2 (reactive power) | Class 1 | Unknown | Class 1 energy (IEC 62053-21); ±1% voltage/current/power |
| Current sensing | 3 x 120A/40mA current transformers included | 1 x 120A CT included | Unknown | 3 x 150A split-core CTs included |
| Monitoring | ||||
| Protocol | RS485 / Modbus | RS485 | Wi-Fi / Modbus TCP / Modbus RTU / HTTP API | Wi-Fi / HTTP / HTTPS / MQTT / Modbus TCP / Local API |
| Local API | No | No | Yes | Yes |
| Cloud dependency | GoodWe SEMS and compatible GoodWe inverter workflows are typically used for normal monitoring, energy-management visibility, and export-control operation. | GoodWe SEMS and the compatible inverter ecosystem are typically used for normal monitoring, export-control workflows, and system visibility. | Optional cloud; supports local and self-hosted integration through Local API, Modbus polling, and MQTT or gateway-based workflows. | Optional cloud; IAMMETER-Cloud Basic is included free for lifetime, while local API, MQTT, Modbus/TCP, and self-hosted workflows remain available. |
| Home Assistant | No | No | Yes | Yes |
| Solar fit | ||||
| Solar import/export | Yes | Yes | Yes | Yes |
| Buying context | ||||
| Price range | Installer-quoted | Unknown | About $88-$100 | About USD 99 on IAMMETER official store during 2026-05 review |
| Availability | North America official page / broader global GoodWe smart-meter family availability varies by market | Global / region-dependent GoodWe availability | Global | Global |
| Source check | ||||
| Last verified | May 21, 2026 | May 18, 2026 | May 15, 2026 | May 18, 2026 |
| Product page | Official page | Official page | Official page | Official page |
| Documentation | Official docs | Official docs | Official docs | Official docs |
Verdict
Choose GoodWe when inverter ecosystem fit is the main goal, and IAMMETER when local APIs, MQTT, and broader third-party integration flexibility matter more.