Refoss EM16P
#2 in Circuit-levelFull review
The pick for Home Assistant users who want circuit data without a cloud account.
Amazon $199.99$199.99
16Local + Home Assistant±1%
4.2/5
A Refoss-class local monitor under the Meross name, a little cheaper.
- 16Circuits
- Local + Home AssistantControl
- ±1%Accuracy
- 2 yearsWarranty
Check price at Amazon$189.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Open API and web control keep data on your network
- Home Assistant support and no subscription
- Invert a backward sensor in the app instead of reopening the panel
Cons
- Sister listing B0G3W4GYXT for the same EM16 gives a looser ±2% accuracy, so the true figure is unclear
- Short track record
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.
Specifications
| Model number | EM16 |
|---|---|
| Monitoring | |
| Branch circuits included | 16 |
| Most circuits supported | 16 |
| Mains CT rating | 200 A |
| Branch CT rating | 60 A |
| Electrical systems | Split-phase, 3-phase |
| Solar / net metering | Yes |
| Claimed accuracy | ±1% |
| Connectivity | |
| Connection | Wi-Fi |
| Local API / MQTT / hub | Yes |
| Home Assistant | Yes |
| Needs maker cloud | No |
| Free of subscription | Yes |
| Build | |
| Warranty | 2 years |
Alternatives in this type
Fusion Energy SEM-Meter (16 sensors)
#3 in Circuit-levelFull review
The lowest price for 16 circuits and local MQTT, if you accept a lesser-known maker.
Amazon $139.99$139.99
16Local + Home Assistant±1%
Fusion Energy SEM-Meter (8 sensors)
#4 in Circuit-levelFull review
Choose the 16-sensor kit instead unless it is out of stock; the saving here is small.
Amazon $129.99$129.99
8 (expands to 16)Local + Home Assistant±1%
Compare
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