relay

Shelly Wave 1PM Mini

mid Owned and reviewed local: excellent Z-Wave

Price: mid band last checked Mar 22, 2026
HA fit: excellent
Works offline: yes
Setup: moderate
Hub needed: yes

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Shelly Wave 1PM Mini - Ultra-compact Z-Wave relay with power monitoring that fits behind almost any existing switch

Owner’s hands-on review ★★★★★

My current go-to for single-switch automations

If a light sits at the end of a circuit, this is the switch I reach for to automate it. I haven’t put it to any other use yet, but for that job it’s been fantastic. I’ve only run the Z-Wave model, and it’s been rock solid.

Site owner · 2026-06-10

Quick verdict

The smallest Z-Wave relay Shelly makes, and it includes power monitoring. Fits behind existing switches in tight boxes, reports energy usage per circuit, and runs entirely local through Z-Wave JS in Home Assistant. You need a Z-Wave controller, but if you already have one, this is one of the best compact relay options available.

Standout: Ultra-compact Z-Wave relay with power monitoring that fits behind almost any existing switch.

Notes last checked Mar 22, 2026.

Compatibility snapshot

Home Assistant excellent

Apple Home none

Google Home none

Alexa none

Works offline yes

Setup moderate

Extra hub needed yes

Power mains

Local control facts

Home Assistant: zwave_js integration, Local Push (home-assistant.io, checked Sep 10, 2026)
Z-Wave JS: in the device database, listed as Shelly Europe Ltd. QMSW-0A1P8 (Wave 1PM Mini) (github.com, checked Sep 10, 2026)

Why it stands out

extremely compact and fits inside most EU and US switch boxes behind existing switches
built-in power monitoring lets you track consumption per circuit
Z-Wave mesh reliability with no WiFi congestion

Reasons to hesitate

requires a Z-Wave controller (USB stick or hub) on your Home Assistant instance
no native Matter or Thread support, locked to Z-Wave ecosystem
no direct voice assistant integration, must go through Home Assistant

Best for

Home Assistant users with an existing Z-Wave network who want compact behind-switch relays
anyone who wants reliable local control with power monitoring in a tiny package

Avoid if

you do not already have a Z-Wave controller and do not want to buy one
you want direct Apple Home, Google Home, or Alexa integration without Home Assistant

Privacy and local-control notes

Fully local via Z-Wave. No cloud, no internet needed. Power monitoring data stays on your network.

Home Assistant support: supported · integration path: Z-Wave JS.

Buying reality check

Price notes: Mid-range pricing for a Z-Wave relay. The built-in power monitoring adds value compared to basic relay modules.

Compare side by side: see relay comparisons →

Verified against

The compatibility notes above have not been through the source audit yet. The manufacturer's page is here; the notes were last checked Mar 22, 2026.

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