Device Comparison
GoodWe GM3000 vs GMK110 vs IAMMETER WEM2067 vs WEM3050T
A practical meter comparison for buyers choosing between inverter-native GoodWe meters and local-integration-friendly IAMMETER options.
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Which To Choose
Start with the practical fit, then read the table.
GoodWe Smart Meter GM3000
Best fit when three-phase (3L+N/400Vac), solar import/export visibility, and local dashboards and Home Assistant.
GoodWe Smart Meter GMK110
Best fit when single-phase (1P2W), solar import/export visibility, and local dashboards and Home Assistant.
IAMMETER WEM2067
Best fit when dual-phase / split-phase; two independent single-phase circuits., solar import/export visibility, and local dashboards and Home Assistant.
IAMMETER WEM3050T
Best fit when single-phase, split-phase, and 3-phase 4-wire WYE/Star systems, solar import/export visibility, and local dashboards and Home Assistant.
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.
At A Glance
Key fit signals before the full table
A quick pass over the most decision-shaping details for each device in this featured comparison.
GoodWe Smart Meter GM3000
- Phase
- Three-phase (3L+N/400Vac)
- Installation
- DIN-rail mounted three-phase smart meter with 3 included current transformers
- Measurement
- CT-based three-phase smart meter for voltage, current, power, energy, and export-limiting workflows in GoodWe systems
- Max current
- 120 A
GoodWe Smart Meter GMK110
- Phase
- Single-phase (1P2W)
- Installation
- DIN-rail mounted single-phase smart meter with one included current transformer
- Measurement
- CT-based bidirectional single-phase smart meter for load monitoring and export-power control
- Max current
- 120 A
IAMMETER WEM2067
- Phase
- Dual-phase / split-phase; two independent single-phase circuits.
- Installation
- Indoor 2-pole DIN-rail mounted dual-phase energy meter with two external split-core current transformers and Wi-Fi antenna.
- Measurement
- Dual-phase / split-phase CT energy meter for forward/reverse active energy, voltage, current, active power, frequency, and solar import/export monitoring.
- Max current
- 150 A
IAMMETER WEM3050T
- Phase
- Single-phase, split-phase, and 3-phase 4-wire WYE/Star systems
- Installation
- 2P DIN-rail mounted Wi-Fi energy meter with 3 x 150A split-core CTs and an external antenna
- Measurement
- Bidirectional three-phase or split-phase Wi-Fi energy meter with active/reactive energy, power factor, and import/export monitoring
- Max current
- 150 A
Before You Decide
Checks that matter before price.
- Confirm your supply type first: single-phase, split-phase, or three-phase.
- Decide whether DIN-rail wiring, CT clamps, or utility-meter access fits your switchboard.
- Choose between cloud convenience and local data access before comparing prices.
- For solar homes, make sure import, export, and load readings are measured at the right point.
| Install fit | ||||
|---|---|---|---|---|
| Phase support | Three-phase (3L+N/400Vac) | Single-phase (1P2W) | Dual-phase / split-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 | Indoor 2-pole DIN-rail mounted dual-phase energy meter with two external split-core current transformers and Wi-Fi antenna. | 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 CT energy meter for forward/reverse active energy, voltage, current, active power, frequency, and solar import/export monitoring. | Bidirectional three-phase or split-phase Wi-Fi energy meter with active/reactive energy, power factor, and 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 | Active energy Class 1; voltage/current/power +/-1.0%. | Class 1 active energy (IEC 62053-21); ±1.0% voltage, current, and active power |
| Current sensing | 3 x 120A/40mA current transformers included | 1 x 120A CT included | Two 150 A split-core CTs included; 16 mm CT diameter. | 3 x 150A split-core CTs included in the standard package |
| Monitoring | ||||
| Protocol | RS485 / Modbus | RS485 | Wi-Fi / Modbus TCP / Modbus RTU / HTTP API | Wi-Fi / HTTP / MQTT / Modbus TCP |
| Local API | Yes | Yes | 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 IAMMETER Cloud; local LAN HTTP, Modbus TCP/RTU, MQTT/TCP/TLS and self-hosted integrations are supported. | IAMMETER-Cloud Basic is included, but local API, MQTT, Modbus/TCP, HTTP/HTTPS, WebUI, and self-hosted/local integrations are supported. |
| Home Assistant | Yes | Yes | 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 IAMMETER product channel; strongest fit for split-phase residential and small solar monitoring markets where WEM2067 is sold or sampled through IAMMETER routes. | Global official store and IAMMETER regional warehouse/platform lanes; IAMMETER lists WEM3050T availability for China, USA, Australia, and Germany. |
| Source check | ||||
| Last verified | Jun 9, 2026 | Jun 20, 2026 | Jun 27, 2026 | Jun 15, 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.
FAQ
Common decision questions.
Which energy meter should I choose?
Choose the option that matches your installation constraints and data path first. For 4 energy meter options, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.
What should I check before comparing prices?
Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.
Can these devices work with local dashboards or Home Assistant?
GoodWe Smart Meter GM3000, GoodWe Smart Meter GMK110, IAMMETER WEM2067, IAMMETER WEM3050T list Home Assistant support in the catalog. GoodWe Smart Meter GM3000, GoodWe Smart Meter GMK110, IAMMETER WEM2067, IAMMETER WEM3050T are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.
Are unknown fields a reason to avoid a device?
Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.
Does the verdict replace the specification table?
No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.