The Best Home Energy Monitors

Panel-mounted monitors that show what your home and each circuit use, ranked.

We pulled the whole-home energy monitors on Amazon and scored them on rating, review volume, and features: circuit-level sensors, local control, and Home Assistant support.

Prices, ratings, and review counts captured from Amazon on 2026-10-04.

Our picks

Best Overall

Emporia

Emporia Vue 3 with 16 circuit sensors

4.6 (867)

UL-listed whole-home monitoring with 16 circuit sensors, 4.6 stars from 867 reviews.

Emporia Vue 3 (whole-home only)

4.5 (228)

The same Emporia Vue 3 without circuit sensors, for $99.99; add sensors later.

$99.99

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Best for Home Assistant

Refoss

Refoss EM16P

4.2 (178)

Local web UI, open API, MQTT, and native Home Assistant support, no cloud required.

$199.99

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Best Value With Sensors

Smart Home Energy Monitor with 16 50A Circuit Level Sensors, Real-Time Power Usage & Electricity Cost Tracking, Ideal for Rental Homes & Shared Apartments, App History, Compatible with Home Assistant

Fusion Energy

Fusion Energy Monitor with 16 x 50 A sensors

4.4 (218)

16 circuit sensors and Home Assistant support for $149.99.

$149.99

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Side-by-side

Works with

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#	Monitor	Price	Rating	Reviews	Works with	Circuit sensors	Local	Cert.	Score
1	Emporia Vue 3 with 16 circuit sensors	$199.99	4.6	867	Emporia app	16 x 50 A	Cloud app (2.4 GHz Wi-Fi + internet required)	UL listed	88
2	Emporia Vue 3 with 8 circuit sensors	$149.99	4.6	316	Emporia app	8 x 50 A	Cloud app	UL listed	84
3	Fusion Energy Monitor with 16 x 50 A sensors	$149.99	4.4	218		16 x 50 A	Home Assistant compatible	Not stated in bullets	84
4	Refoss EM16P	$199.99	4.2	178		Not stated in bullets	Web UI, open API, MQTT, no cloud	Not stated in bullets	82
5	Refoss Monitor with 16 x 60 A sensors	$199.99	4.2	67		16 x 60 A (18 circuits total)	Web UI, open API, MQTT, WebSocket	Not stated in bullets	77
6	Emporia Vue 3 (whole-home only)	$99.99	4.5	228	Emporia app	None (mains only; add up to 16)	Cloud app	UL listed	73
7	Meross Smart Home Energy Monitor	$179.99	4.3	46		Not stated in bullets	Home Assistant support	ETL, UL 61010 standard	72
8	Emporia Vue with 16 sensors + 4 smart plugs	$225.58	4.6	7		16	Cloud app	Not stated in bullets	64
9	Eyedro 200 A Wi-Fi/Ethernet monitor	$149.99	3.6	123	MyEyedro cloud	2 x 200 A mains	Cloud (no subscription)	Not stated in bullets	58

Works with: hover or tap an icon for the system name. A system is shown when it supports the product directly or through the hub the listing requires. Refoss monitors have a native Home Assistant integration with local control. Emporia works through its own app; Home Assistant support for it is community-made.

The full ranking

Scored out of 100: 45% customer rating, 30% review volume, 25% features.

Best Overall

Emporia

Emporia Vue 3 Home Energy Monitor - Smart Home Automation Module and Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering for UL Certified Safe Energy Monitoring

4.6 867 reviews

Score 88/100

$199.99

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1K+ bought in past month

The most popular whole-home monitor, with 16 circuit sensors to see what each appliance costs.

Circuit sensors included: 16 x 50 A
Local control / API: Cloud app (2.4 GHz Wi-Fi + internet required)
Solar / net metering: Yes
Certification: UL listed

Pros

16 circuit sensors included
UL listed
Solar and net metering
4.6 stars, 1K+ bought in the past month

Cons

Needs internet; data goes through Emporia's cloud
Panel install
$199.99

Emporia

Emporia Vue 3 Home Energy Monitor - Smart Home Automation Module and Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering for UL Certified Safe Energy Monitoring

4.6 316 reviews

Score 84/100

$149.99

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500+ bought in past month

The middle option: eight circuit sensors for the biggest loads.

Circuit sensors included: 8 x 50 A
Local control / API: Cloud app
Solar / net metering: Yes
Certification: UL listed

Pros

8 circuit sensors
UL listed
4.6 stars

Cons

Cloud only
Panel install
$149.99

Best Value With Sensors

Fusion Energy

Smart Home Energy Monitor with 16 50A Circuit Level Sensors, Real-Time Power Usage & Electricity Cost Tracking, Ideal for Rental Homes & Shared Apartments, App History, Compatible with Home Assistant

4.4 218 reviews

Score 84/100

$149.99

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200+ bought in past month

Sixteen circuit sensors and Home Assistant support for less than the Emporia 16-sensor kit.

Circuit sensors included: 16 x 50 A
Local control / API: Home Assistant compatible
Solar / net metering: Yes
Certification: Not stated in bullets

Pros

16 circuit sensors
Names Home Assistant
$149.99, 4.4 stars

Cons

Lesser-known brand
Certification isn't in the bullets
Panel install

Best for Home Assistant

Refoss

Refoss Smart Home Energy Monitor with Open API, Home Assistant, No Cloud

4.2 178 reviews

Score 82/100

$199.99

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100+ bought in past month

The privacy pick: everything runs locally, with native Home Assistant support.

Circuit sensors included: Not stated in bullets
Local control / API: Web UI, open API, MQTT, no cloud
Solar / net metering: Yes, zero feed-in automation
Certification: Not stated in bullets

Pros

Local web UI, open API, and MQTT
Native Home Assistant integration
Solar surplus automation

Cons

4.2 stars
Sensor count isn't in the bullets
$199.99

Refoss

Refoss Smart Home Energy Monitor with 16 60A Circuit Sensor, Local Control

4.2 67 reviews

Score 77/100

$199.99

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100+ bought in past month

Local monitoring of 18 circuits at ±1% precision, per the listing.

Circuit sensors included: 16 x 60 A (18 circuits total)
Local control / API: Web UI, open API, MQTT, WebSocket
Solar / net metering: Yes
Certification: Not stated in bullets

Pros

18 circuits
±1% precision, per the listing
Local API and MQTT

Cons

Only 67 reviews
4.2 stars
$199.99

Best Budget

Emporia

Emporia Vue 3 Home Energy Monitor - Smart Home Automation Module and Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering for UL Certified Safe Energy Monitoring

4.5 228 reviews

Score 73/100

$99.99

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400+ bought in past month

Whole-home totals for $99.99, with room to add circuit sensors later.

Circuit sensors included: None (mains only; add up to 16)
Local control / API: Cloud app
Solar / net metering: Yes
Certification: UL listed

Pros

$99.99
UL listed
Add up to 16 circuit sensors later

Cons

No circuit sensors in the box
Cloud only
Panel install

Meross

Meross Smart Home Energy Monitor, Real-Time Power & Cost Tracking

4.3 46 reviews

Score 72/100

$179.99

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100+ bought in past month

An ETL-certified monitor with cost charts, alerts, and Home Assistant support.

Circuit sensors included: Not stated in bullets
Local control / API: Home Assistant support
Solar / net metering: Yes
Certification: ETL, UL 61010 standard

Pros

ETL certified
±1% accuracy, per the listing
Usage-spike alerts

Cons

Only 46 reviews
Circuit sensors aren't detailed
$179.99

Emporia

Emporia Energy Monitor with 16 Sensors + 4 Smart Plugs Super Bundle - Whole Home Electricity Usage Tracking & Real-Time Control - Supports Solar Net Metering - Works with iOS, Android, Alexa

4.6 7 reviews

Score 64/100

$225.58

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The 16-sensor Emporia plus four energy-monitoring smart plugs.

Circuit sensors included: 16
Local control / API: Cloud app
Solar / net metering: Yes
Certification: Not stated in bullets

Pros

16 sensors and 4 smart plugs
Per-outlet energy data
4.6 stars

Cons

Only 7 reviews
$225.58
Cloud only

Eyedro

Eyedro Smart Home Energy Monitor 200A 2.4GHz WiFi/Ethernet Net Metering

3.6 123 reviews

Score 58/100

$149.99

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50+ bought in past month

A mains-only monitor with Wi-Fi or wired Ethernet.

Circuit sensors included: 2 x 200 A mains
Local control / API: Cloud (no subscription)
Solar / net metering: Yes, net metering
Certification: Not stated in bullets

Pros

Wi-Fi or Ethernet
No subscription
Net metering

Cons

3.6 stars
No circuit sensors
Cloud dashboard

Buyer's guide

Do I need an electrician?

Whole-home monitors clip current sensors around wires inside your electrical panel. Many people install them, but it means working inside a live panel. Hire an electrician if you're not comfortable.

Whole-home or circuit-level?

Two main sensors show your total use. Adding circuit sensors shows which appliances use what, like the dryer, AC, or EV charger.

Does it work with solar?

Many monitors can track solar production and net metering with extra sensors. Check the listing if you have panels.

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Energy monitors on other protocols

Compare all smart energy monitors on one page →