Name: Fusion Energy SEM-Meter (16 sensors)
Brand: Fusion Energy
Price: 139.99 USD

The lowest price for 16 circuits and local MQTT, if you accept a lesser-known maker.

Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Cons

The Fusion Energy SEM-Meter family

Every Fusion Energy SEM-Meter model we rank, smallest first. Ratings compare each against its own type.

Model	Circuits	Rating	Price
Fusion Energy SEM-Meter (8 sensors)	8 (expands to 16)	3.9/5	$129.99
Fusion Energy SEM-Meter (16 sensors) (this one)	16	4.1/5	$139.99

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Value $139.9952
Circuits 16 branch circuits100
Local control local API, MQTT or hub, Home Assistant, works without the cloud100
Accuracy claimed within ±1%100
Subscription subscription terms not published (neutral score used)50
Warranty 1-year warranty0

A Refoss-class local monitor under the Meross name, a little cheaper.

$189.99

16Local + Home Assistant±1%

The pick for Home Assistant users who want circuit data without a cloud account.

$199.99

16Local + Home Assistant±1%

Choose the 16-sensor kit instead unless it is out of stock; the saving here is small.

$129.99

8 (expands to 16)Local + Home Assistant±1%