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 3.0. The Aeotec Home Energy Meter 8 leads on value. The Shelly Pro 3EM 400A wins on circuits. The Aeotec Home Energy Meter 8 costs $234 less ($95.99 vs $329.99).
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 400A
#8 in Whole-homeFull review
Only worth it if your service is above 120A and the 400A sensors are confirmed with the seller.
Amazon $329.99$329.99
Which should you buy?
- Choose the Aeotec Home Energy Meter 8 for value ($95.99 vs $329.99).
- Choose the Shelly Pro 3EM 400A 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 400A |
|---|---|---|
| Overall rating | 3.5/5 | 3.0/5 |
| Value 25% | 73 $95.99 | 3 $329.99 |
| 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 | 50 local control not published (neutral score used) |
| 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 | 100 5-year warranty |
Specifications
| Aeotec Home Energy Meter 8 | Shelly Pro 3EM 400A | |
|---|---|---|
| Monitoring | ||
| Branch circuits included | None in box | None in box (up to 3) |
| Most circuits supported | - | 3 |
| Mains CT rating | 200 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 |
| Local API / MQTT / hub | Yes | - |
| Home Assistant | Yes | - |
| Needs maker cloud | No | - |
| Build | ||
| Warranty | - | 5 years |