Eyedro
Eyedro EYEFI-4 Home Energy Monitor
$139Cheaper
Best Home Energy Monitors · head-to-head
Eyedro EYEFI-4 Home Energy Monitor vs Generac PWRview Home Energy Monitor W2HEM
A sourced, side-by-side comparison. Eyedro EYEFI-4 Home Energy Monitor is cheaper at $139. Every spec and price links to its source.
Generac
Generac PWRview Home Energy Monitor W2HEM
$219.99
Which is better: the Eyedro EYEFI-4 Home Energy Monitor or Generac PWRview Home Energy Monitor W2HEM?
On the specs we track, they're closely matched. The Eyedro EYEFI-4 Home Energy Monitor is the cheaper at $139.
Check Eyedro EYEFI-4 Home Energy Monitor price See Generac PWRview Home Energy Monitor W2HEM on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Eyedro EYEFI-4 Home Energy Monitor | Generac PWRview Home Energy Monitor W2HEM |
|---|---|---|
| US price | $139 MSRP from eyedro.com. | $219.99 |
| Brand | Eyedro | Generac |
| Released | — | — |
| Monitoring type | ct-clamp | ct-clamp |
| Main circuit amps | 200 | 264 |
| Branch circuit count | 0 | 0 |
| Connectivity protocol | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n |
| Solar net metering | Yes | Yes |
| Local api support | Yes | — |
| Subscription required | No | — |
| App platforms | web (MyEyedro) | iOS, Android |
| Accuracy percent | 1 | 1 |
| Installation type | external-ct (no panel wiring) | panel-mount |
| Smart home integrations | — | — |
| Etl ul certified | UL 61010-1, CSA C22.2#61010-1 | UL/CSA 61010-1 |
Sources — Eyedro EYEFI-4 Home Energy Monitor: eyedro.com (verified 2026-06-27). Generac PWRview Home Energy Monitor W2HEM: norwall.com (verified 2026-06-27).
What's the difference between the Eyedro EYEFI-4 Home Energy Monitor and Generac PWRview Home Energy Monitor W2HEM?
Where the two actually differ on the specs we track (4 of 12). Matching specs are omitted.
- Main circuit amps: Eyedro EYEFI-4 Home Energy Monitor 200 vs Generac PWRview Home Energy Monitor W2HEM 264
- App platforms: Eyedro EYEFI-4 Home Energy Monitor web (MyEyedro) vs Generac PWRview Home Energy Monitor W2HEM iOS, Android
- Installation type: Eyedro EYEFI-4 Home Energy Monitor external-ct (no panel wiring) vs Generac PWRview Home Energy Monitor W2HEM panel-mount
- Etl ul certified: Eyedro EYEFI-4 Home Energy Monitor UL 61010-1, CSA C22.2#61010-1 vs Generac PWRview Home Energy Monitor W2HEM UL/CSA 61010-1
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Eyedro EYEFI-4 Home Energy Monitor
No sourced tester review yet.
Generac PWRview Home Energy Monitor W2HEM
Only one whitelisted tester, NYT Wirecutter, covers the Generac PWRview W2 (W2HEM), and only qualitatively: it was a former pick now dropped for poor availability and never lab-measured. Wirecutter says it uses machine learning like Sense and suits homes already in Generac's solar and battery ecosystem. No hands-on measurements exist. (1 sourced review.)
Praised: Uses machine learning to identify where the home draws power, similar to Sense; Optimized to integrate with Generac solar panels and storage batteries; worth considering for existing Generac-ecosystem owners.
Flagged: Hard to find / limited availability; removed from Wirecutter's picks and no longer listed on Generac's site.