Device Comparison
Emporia Vue 3 vs Vue 3 3-Phase vs Aeotec Home Energy Meter vs Leviton Whole Home Energy Monitor
A whole-home monitoring comparison for retrofit clamp systems, panel visibility, and smart-home-friendly energy tracking.
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Which To Choose
Start with the practical fit, then read the table.
Emporia Vue 3 Home Energy Monitor
Best fit when single-phase 2-wire, split-phase 3-wire, or three-phase 4-wire Wye (TN/TT neutral); no Delta or high-leg systems., solar import/export visibility, and panel-installed CT clamp whole-home and circuit monitor.
Emporia Vue 3 3-Phase Energy Monitor
Best fit when single-phase, split-phase, or 3-phase 4-wire Wye systems with neutral; not for 3-phase 3-wire delta, solar import/export visibility, and electrical-panel energy monitor with three 200 A main CTs and optional branch-circuit sensors.
Aeotec Home Energy Meter
Best fit when region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants., solar import/export visibility, and local dashboards and Home Assistant.
Leviton Whole Home Energy Monitor
Best fit when 120/240 V, 60 Hz North American split-phase service in compatible Leviton Load Centers., solar import/export visibility, and electrician-installed in a compatible Leviton Load Center with a dedicated 2-pole breaker and external split-core CTs..
Use this comparison when the priority is whole-home visibility rather than classic DIN-rail metering, and the shortlist includes clamp-based monitors for North American homes or light commercial panels.
At A Glance
Key fit signals before the full table
A quick pass over the most decision-shaping details for each device in this featured comparison.
Emporia Vue 3 Home Energy Monitor
- Phase
- Single-phase 2-wire, split-phase 3-wire, or three-phase 4-wire Wye (TN/TT neutral); no Delta or high-leg systems.
- Installation
- Panel-installed CT clamp whole-home and circuit monitor
- Measurement
- Panel CT monitoring for AC mains and up to 16 branch circuits, including bidirectional solar and net flow
- Max current
- 200 A
Emporia Vue 3 3-Phase Energy Monitor
- Phase
- Single-phase, split-phase, or 3-phase 4-wire Wye systems with neutral; not for 3-phase 3-wire delta
- Installation
- Electrical-panel energy monitor with three 200 A main CTs and optional branch-circuit sensors
- Measurement
- CT-based whole-home or light-commercial energy monitor with solar and net metering support
- Max current
- 200 A
Aeotec Home Energy Meter
- Phase
- Region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants.
- Installation
- Electrical-panel clamp-meter installation; US versions use plug-in power and EU versions are wired in. Licensed-electrician installation recommended.
- Measurement
- Clamp-based, bidirectional whole-home Z-Wave metering for consumption and solar / generator production or overproduction monitoring.
- Max current
- 200 A
Leviton Whole Home Energy Monitor
- Phase
- 120/240 V, 60 Hz North American split-phase service in compatible Leviton Load Centers.
- Installation
- Electrician-installed in a compatible Leviton Load Center with a dedicated 2-pole breaker and external split-core CTs.
- Measurement
- CT-based 120/240 V whole-home consumption and production monitoring in a Leviton Load Center.
- Max current
- 250 A
Before You Decide
Checks that matter before price.
- Confirm your supply type first: single-phase, split-phase, or three-phase.
- Decide whether DIN-rail wiring, CT clamps, or utility-meter access fits your switchboard.
- Choose between cloud convenience and local data access before comparing prices.
- For solar homes, make sure import, export, and load readings are measured at the right point.
| Install fit | ||||
|---|---|---|---|---|
| Phase support | Single-phase 2-wire, split-phase 3-wire, or three-phase 4-wire Wye (TN/TT neutral); no Delta or high-leg systems. | Single-phase, split-phase, or 3-phase 4-wire Wye systems with neutral; not for 3-phase 3-wire delta | Region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants. | 120/240 V, 60 Hz North American split-phase service in compatible Leviton Load Centers. |
| Installation | Panel-installed CT clamp whole-home and circuit monitor | Electrical-panel energy monitor with three 200 A main CTs and optional branch-circuit sensors | Electrical-panel clamp-meter installation; US versions use plug-in power and EU versions are wired in. Licensed-electrician installation recommended. | Electrician-installed in a compatible Leviton Load Center with a dedicated 2-pole breaker and external split-core CTs. |
| Measurement | Panel CT monitoring for AC mains and up to 16 branch circuits, including bidirectional solar and net flow | CT-based whole-home or light-commercial energy monitor with solar and net metering support | Clamp-based, bidirectional whole-home Z-Wave metering for consumption and solar / generator production or overproduction monitoring. | CT-based 120/240 V whole-home consumption and production monitoring in a Leviton Load Center. |
| Max current | 200 A | 200 A | 200 A | 250 A |
| Nominal voltage | 120/240 V AC split-phase; 3-phase kits available | Unknown | Unknown | 120/240 V AC |
| Meter fit | ||||
| Accuracy class | Published measurement accuracy +/-2%; not revenue-grade. | ±2% compared to utility meter readings; not revenue-grade. | Over 99% measurement accuracy when current is greater than 0.05 A | LWHEM CT accuracy: +/-5% from 1-5 A; +/-3% from 5-200 A; not for billing. |
| Current sensing | Up to three 200 A main CT inputs and sixteen 50 A branch CT inputs; optional flexible main sensors are sold separately. | Three included 200 A main CTs, one per phase; up to sixteen optional/included 50 A branch CTs depending on bundle. | ZW095 clamp SKUs: US 2-clamp 200 A version; EU 1-clamp 60 A and 3-clamp 60 A variants. | One LSMMA split-core CT pair included; three CT-pair ports support up to three monitored sources. Leviton publishes a 5-250 A LSMMA reading range. |
| Monitoring | ||||
| Protocol | Wi-Fi / Ethernet / Emporia App | Wi-Fi / Ethernet / Emporia app cloud | Z-Wave Plus | Wi-Fi / My Leviton App / Smart Load Center |
| Local API | No | No | Yes | No |
| Cloud dependency | Required for normal use: Vue sends data over 2.4 GHz Wi-Fi to Emporia Cloud; the app reads cloud data. No local device API or local server. | Required; all Vue data flows through Emporia Cloud. No local API or local storage. | No Aeotec cloud is required; the meter reports locally over Z-Wave to a compatible gateway. Remote app/cloud behavior depends on the chosen hub. | Cloud required for My Leviton app, remote monitoring, history and OTA updates; no official local LAN API documented. |
| Home Assistant | No | No | Yes | No |
| Solar fit | ||||
| Solar import/export | Yes | Yes | Yes | Yes |
| Buying context | ||||
| Price range | About $200-$300 | About USD 209.99 | USD 129.99 official US store snapshot | About $250-$400 |
| Availability | International hardware compatibility across six continents where 120/240 V, phase, certification, sales-channel, and installation requirements are met; verify local availability and code compliance. | US official store / North America reference | Global / region-specific Aeotec Z-Wave SKUs; availability depends on local Aeotec retailer or distributor stock. | US, Canada |
| Source check | ||||
| Last verified | Sep 28, 2026 | Sep 28, 2026 | Sep 29, 2026 | Sep 26, 2026 |
| Product page | Official page | Official page | Official page | Official page |
| Documentation | Official docs | Official docs | Official docs | Official docs |
Verdict
Choose Emporia for app-led circuit visibility, Aeotec for Z-Wave smart-home fit, and Leviton when panel ecosystem alignment matters more than a general-purpose retrofit path.
FAQ
Common decision questions.
Which energy meter should I choose?
Choose the option that matches your installation constraints and data path first. For 4 energy meter options, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.
What should I check before comparing prices?
Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.
Can these devices work with local dashboards or Home Assistant?
Aeotec Home Energy Meter list Home Assistant support in the catalog. Aeotec Home Energy Meter are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.
Are unknown fields a reason to avoid a device?
Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.
Does the verdict replace the specification table?
No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.