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Home Assistant TestFlight
Refoss

Refoss Smart Energy Monitor EM16

Energy · And More

Mixed reportsLocal

2 reports: 1 says it works, 1 says it partly works.

Reported with 1 integration: Refoss.

What people report

IntegrationIn Home AssistantIn Apple HomeWhat they saidSource
RefossWorks LocalLocal HA integration, updates about every 20 seconds
Saved copy
SEM-Meter direct integration with MQTT with current firmware updates every 2 seconds. Refoss EM16 Refoss has its own direct local HA integration updates about every 20 seconds. Emporia Vue Has a cloud based integration updates every minute. But is flashable to ESPHome. Priced low to high. Im using the SEM-Meter currently and tracks as well as the Emporia Vue 2 I had installed that is now in use at my parents house so mom can track her usage. I ordered the Refoss before I had the SEM and is well outside the return date so Im gonna see, hoping, if the WiFi reaches the remote meter base to …

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

Reddit comment · 2025-07
RefossPartly works LocalStopped reporting after firmware update; power cycle restored
Saved copy
It stopped working for me too. The Refoss LAN HACS integration worked fine as a substitute for my em16 though.

Excerpt saved from GitHub on 2026-10-23.

Issue #161280 · 2026-01

Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.

In ReReHome

Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.

Identifiers

BrandRefoss
ModelEM16
CategoryEnergy

Also reported as

  • Refoss EM16