Aeotec Home Energy Meter 8
#1 in Whole-homeFull review
The Z-Wave choice for a whole-home meter that feeds your existing hub.
Amazon $95.99$95.99
None in boxLocal + Home Assistant±1%
3.4/5
The first-generation Pro 3EM with a longer warranty; buy the v2 if you want Matter.
- None in box (up to 3)Circuits
- ±1%Accuracy
- 5 yearsWarranty
Check price at Amazon$153.33
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Five-year warranty in the listing
- Two-way metering for solar, 1% active energy accuracy
Cons
- Original version; the v2 adds Matter
- Three channels only
The Shelly Pro 3EM family
Every Shelly Pro 3EM model we rank, smallest first. Ratings compare each against its own type.
| Model | Circuits | Rating | Price |
|---|---|---|---|
| Shelly Pro 3EM 3CT63 | None in box (up to 3) | 3.1/5 | $150.99 |
| Shelly Pro 3EM 120A (this one) | None in box (up to 3) | 3.4/5 | $153.33 |
| Shelly Pro 3EM 400A | None in box (up to 3) | 3.0/5 | $329.99 |
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 (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 |
| Build | |
| Warranty | 5 years |
Alternatives in this type
Aeotec Home Energy Meter Gen5
#2 in Whole-homeFull review
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$115.99
None in boxLocal + Home Assistant±1%
Shelly Pro 3EM 120A v2
#4 in Whole-homeFull review
A DIN-rail meter for installers and tinkerers who want local control and solar metering.
Amazon $154.99$154.99
None in box (up to 3)Local±1%
Compare
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