The older Aeotec Z-Wave mains meter, for hubs without Z-Wave Long Range; most buyers should take the cheaper Home Energy Meter 8.
Amazon $115.99
A DIN-rail meter for installers and tinkerers who want local control and solar metering.
- None in box (up to 3)Circuits
- LocalControl
- ±1%Accuracy
- 3 yearsWarranty
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- Scripting and webhooks run locally with no cloud
- DIN-rail meter with Wi-Fi, LAN and Matter
- Two-way (import and export) metering for solar
- 120A CTs limit it to smaller services
- Three channels only; not a panel-wide circuit monitor
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | Pro 3EM v2 (120A) |
|---|---|
| Monitoring | |
| Branch circuits included | None in box (up to 3) |
| Most circuits supported | 3 |
| Mains CT rating | 120 A |
| Electrical systems | 3-phase |
| Solar / net metering | Yes |
| Claimed accuracy | ±1% |
| Connectivity | |
| Connection | Wi-Fi, LAN, Bluetooth, Matter |
| Local API / MQTT / hub | Yes |
| Needs maker cloud | No |
| Build | |
| Warranty | 3 years |
Alternatives in this type
The first-generation Pro 3EM with a longer warranty; buy the v2 if you want Matter.
Amazon $153.33An inexpensive meter for a single circuit you care about, such as a sub-panel or heat pump.
Amazon $69.99Compare
Compare the Shelly Pro 3EM 120A v2 with any other home energy monitor →
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