Verified compatibility
We test every device for these ecosystems. For non-standard integrations contact us before ordering.
- Home Assistant
- Zigbee
- Matter
- KNX
- Wi-Fi

Flip one toggle in eWeLink and Detach Relay splits the wall key from the relay: presses stop cutting power to smart bulbs and fire scenes instead, while the light itself obeys the app and voice commands.<br><br>The second argument is the body: at 39.5×33×16.8 mm it is 40% smaller than MINIR2 and 60% smaller than MINIR3, so it slots into round Ø60 mm and other tight boxes where regular relays no longer go. S1/S2 accept momentary, rocker and SPDT two-way switches, the relay handles 10 A (2400 W at 240 V), and Matter certification brings Apple Home, Google Home, Alexa and SmartThings. Installation requires both live and neutral at the mounting point.
CasaSmart essentials
We test every device for these ecosystems. For non-standard integrations contact us before ordering.
What you need on your side and what we deliver.
Three typical automations we set up after the install.
Inside the round Ø60 mm box behind the switch, too shallow for a regular module, the MINIR4M fits alongside the wire joints — hallway light gains schedules and voice control.
The wall key is decoupled from the relay: Wi-Fi bulbs in the fixture stay powered at all times, and a press fires the evening scene instead of cutting power.
In a house outside Chișinău the MINIR4M wires into the existing pair of SPDT staircase switches and adds automatic switch-off on a timer.
Same ecosystem
Devices that run in the same smart-home ecosystem.

Sonoff
1.499MDL

Sonoff
1.199MDL

Sonoff
999MDL

Sonoff
899MDL

Sonoff
899MDL

Sonoff
899MDL
Same category
Close models and alternatives from the CasaSmart catalog.

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Manager guidance
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922