Device profile · Specifications & compatibility

Refoss EM16P

Name: Refoss EM16P
Brand: Refoss

Refoss · Energy Monitors · Model EM16P

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Refoss EM16P lists Three Phase; Split Phase; Home Assistant.
Verify the installation, sensor arrangement and regional electrical requirements with the manufacturer.

Browse more from Refoss or explore all energy monitors in our catalog.

Recorded year: 2025
Recorded warranty: 2 years
Dimensions: 4.5 x 3.5 x 1.1 in
Weight: 4.27lb

The details that shape your choice

Refoss EM16P Quick Features

Start with these specifications, then check the full details and conditions below.

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Three Phase: Yes; View details →
Split Phase: Yes; View details →
2.4 GHz Wi-Fi: Yes; View details →
Bluetooth: Yes; View details →
Data Export: Yes; View details →
Data History: 5 years; View details & conditions →

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From specification to decision

Refoss EM16P: Capabilities And Limitations

Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.

What it offers

A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. Native integration, no firmware flashing
View Home Assistant details →

What to consider

Matter is listed as unsupported; check another documented integration if Matter is essential to your setup.
View Matter details →
Apple Home support is listed as unavailable; do not assume the device appears directly in Apple Home.
View Apple Home details →

Still needs verification

Confirm these details if they matter to your setup.

real time updates: Not recorded →

About our sources and comparison method →

Questions About Refoss EM16P

Does Refoss EM16P support three-phase support?

Yes, according to the listed specifications. Verify the installation, sensor arrangement and regional electrical requirements with the manufacturer.

View Three Phase specifications →

Does Refoss EM16P support split-phase support?

Yes, according to the listed specifications. Check the supported electrical system and required installation procedure.

View Split Phase specifications →

Does Refoss EM16P support Matter?

No, according to the listed specifications. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.

View Matter specifications →

Does Refoss EM16P work with Home Assistant?

Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. Native integration, no firmware flashing

View Home Assistant specifications →

Does Refoss EM16P work with Apple Home?

No, according to the listed specifications. Check the model, firmware, exposed controls and any additional hardware requirements.

View Apple Home specifications →

Explore the full picture

Refoss EM16P Specifications

Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.

0 of 39 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →

Metering9 fields

Metering specifications
Monitored Circuits	18
Included Ct Sensors	18 Details & conditions 2 x 200 A mains and 16 x 60 A branch sensors
Main Ct Rating	200 A
Branch Ct Rating	60 A
Accuracy	±2%
Split Phase	Yes
Three Phase	Yes
Bidirectional Metering	Yes
Power Factor	Yes

Connectivity8 fields

Connectivity specifications
2.4 GHz Wi-Fi	Yes
5 GHz Wi-Fi	No
Ethernet	No
Bluetooth	Yes
Z Wave	No
Zigbee	No
Thread	No
Other	No

Data Monitoring6 fields

Data Monitoring specifications
Real Time Updates	Not recorded
Data History	5 years Details & conditions Daily data 5 years, hourly 2 years, minute 2 months, plus 7 days of minute data stored locally
Energy Cost Tracking	Yes
Time Of Use Rates	No
Data Export	Yes
Usage Alerts	Yes Details & conditions Per-circuit usage targets

Features3 fields

Features specifications
Relay Output	No
Load Management	Yes Details & conditions Zero feed-in and peak management automations
Automations	Yes

Installation4 fields

Installation specifications
Breaker Panel Install	Yes
Din Rail Mount	No
Smart Meter Port	No
Power Supply	Mains (100-240 V)

Integrations6 fields

Integrations specifications
Google Home	No
Alexa	No Details & conditions Alexa has no energy meter device type and this meter has no relay to expose as a switch, so a skill has nothing to publish
Apple Home	No
SmartThings	No
Home Assistant	Yes Details & conditions Native integration, no firmware flashing
Matter	No

Local Control3 fields

Local Control specifications
Local Api	Yes Details & conditions Open API with JSON-RPC 2.0 over HTTP and webhooks
Mqtt	Yes
Local Web Interface	Yes

Category ComparisonSee how these fields vary across energy monitors Reading SpecificationsCheck units, conditions and specification limits

How this device compares

Refoss EM16P vs Other Similar Models

Statistical context from 25 energy monitors in this catalog. These figures describe our recorded data, not independent measurements.

Recorded feature coverage

Split Phase: 6 of 17 known answers are Yes

Metering: 35% among explicit Yes/No answers; 8 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Recorded feature coverage

Bluetooth: 10 of 20 known answers are Yes

Connectivity: 50% among explicit Yes/No answers; 5 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Recorded feature coverage

Mqtt: 12 of 23 known answers are Yes

Local Control: 52% among explicit Yes/No answers; 2 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Brand representation in this directory

3 of 25 models are from Refoss

Counts energy monitors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.

How These Figures Are CalculatedLearn about our catalog statistics methodology

What Should You Verify Before Buying Refoss EM16P?

These checks describe energy monitors requirements. Confirm each one against the exact model’s current manufacturer documentation and your installation.

Choose device-level, circuit-level or whole-home measurement.
Verify phase, sensor and panel compatibility with the manufacturer.
Confirm installation requirements before work near electrical equipment.
Check sample intervals, export and how tariff calculations are handled.

Verify compatibility beyond a protocol label →Check accounts, accessories and installation requirements →Check update support and data deletion before choosing →

Side-by-side specification comparison

Compare Refoss EM16P vs Similar Energy Monitors

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Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.