With dimensions of 39.5 × 33 × 16.8 mm, Sonoff MINIR4 Extreme fits even where space is minimal. It is designed for easy installation in standard European junction boxes while preserving the look of your existing wall switches.
The dual-core ESP32 chip ensures fast responses and reliable automation operation. The module works with standard wall switches, push-buttons, SPDT switches, and sensors with a dry contact, so you can easily integrate it into new or existing electrical installations.
Create smart scenes with sensors (motion, door/window), use schedules and timers, and control the device by voice via Amazon Alexa or Google Home. Detach Relay mode and delayed startup after power is restored help improve comfort and operational safety.
Sonoff MINIR4 (Extreme) is a modern in-wall module that adds smart functions to existing wiring without having to change the design of your switches. Thanks to its 39.5 × 33 × 16.8 mm size, it is ideal for space-limited locations and makes installation easier in common junction boxes. The PC V0 enclosure with high flame resistance and a relay rated for up to 100,000 switching cycles support safe, long-term operation.
The device is built on a dual-core ESP32 for quick response and a stable Wi‑Fi connection. It supports a wide range of inputs (e.g., doorbell push-buttons, standard switches, SPDT switches, and dry contacts), making it suitable for both new and existing installations. In the app you can create smart scenes—for example, automatic lighting when motion is detected or when a door opens—and use scheduling, countdowns, and repeating timers.
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