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
The Aeotec Home Energy Meter 8 is the better home energy monitor overall, rated 3.5 to 3.3. The Aeotec Home Energy Meter 8 leads on value and local control. The Shelly Pro 3EM 120A v2 wins on circuits. The Aeotec Home Energy Meter 8 costs $59 less ($95.99 vs $154.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
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
Which should you buy?
- Choose the Aeotec Home Energy Meter 8 for value ($95.99 vs $154.99) and local control (local API, MQTT or hub, Home Assistant, works without the cloud vs local API, MQTT or hub, works without the cloud).
- Choose the Shelly Pro 3EM 120A v2 for circuits (0 branch circuits included, up to 3 vs mains only).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every whole-home home energy monitor; a clear win is highlighted. How we rank explains each one.
| Factor weight | Aeotec Home Energy Meter 8 | Shelly Pro 3EM 120A v2 |
|---|---|---|
| Overall rating | 3.5/5 | 3.3/5 |
| Value 25% | 73 $95.99 | 46 $154.99 |
| Circuits 20% | 0 mains only | 9 0 branch circuits included, up to 3 |
| Local control 20% | 100 local API, MQTT or hub, Home Assistant, works without the cloud | 70 local API, MQTT or hub, works without the cloud |
| Accuracy 15% | 100 claimed within ±1% | 100 claimed within ±1% |
| Subscription 10% | 50 subscription terms not published (neutral score used) | 50 subscription terms not published (neutral score used) |
| Warranty 10% | 0 warranty not published, scored as none | 50 3-year warranty |
Specifications
| Aeotec Home Energy Meter 8 | Shelly Pro 3EM 120A v2 | |
|---|---|---|
| Monitoring | ||
| Branch circuits included | None in box | None in box (up to 3) |
| Most circuits supported | - | 3 |
| Mains CT rating | 200 A | 120 A |
| Electrical systems | Split-phase | 3-phase |
| Solar / net metering | Yes | Yes |
| Claimed accuracy | ±1% | ±1% |
| Connectivity | ||
| Connection | Z-Wave Long Range | Wi-Fi, LAN, Bluetooth, Matter |
| Local API / MQTT / hub | Yes | Yes |
| Home Assistant | Yes | - |
| Needs maker cloud | No | No |
| Build | ||
| Warranty | - | 3 years |