Refoss EM16P vs Siemens Inhab Energy Monitor

Last updated: November 9, 2026

The Refoss EM16P is the better home energy monitor overall, rated 4.1 to 3.1. The Refoss EM16P leads on value. The Refoss EM16P costs $67.76 less ($199.99 vs $267.75).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Refoss EM16P vs Siemens Inhab Energy Monitor

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every circuit-level home energy monitor; a clear win is highlighted. How we rank explains each one.

Factor weightRefoss EM16PSiemens Inhab Energy Monitor
Overall rating4.1/53.1/5
Value 25%32 $199.9915 $267.75
Circuits 20%100 16 branch circuits100 16 branch circuits
Local control 20%100 local API, MQTT or hub, Home Assistant, works without the cloud50 local control not published (neutral score used)
Accuracy 15%100 claimed within ±1%50 accuracy not claimed (neutral score used)
Subscription 10%100 no subscription50 subscription terms not published (neutral score used)
Warranty 10%25 2-year warranty0 warranty not published, scored as none

Specifications

Refoss EM16PSiemens Inhab Energy Monitor
Monitoring
Branch circuits included1616
Most circuits supported1616
Mains CT rating200 A200 A
Branch CT rating60 A50 A
Electrical systemsSplit-phase, 3-phase-
Solar / net meteringYesYes
Claimed accuracy±1%-
Connectivity
ConnectionWi-FiWi-Fi
Local API / MQTT / hubYes-
Home AssistantYes-
Needs maker cloudNo-
Free of subscriptionYes-
Build
Warranty2 years-

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