Sonoff MINIR4 Smart Switch Module (MINI Extreme Wi-Fi)

Sonoff MINIR4 smart switch (also known as Sonoff MINI Extreme) is one of the smallest Wi-Fi smart relay modules on the market. Its dimensions are only 39.5 × 33 mm. It installs discreetly inside a standard electrical wall box right behind your existing switch. In this way, it instantly turns any traditional switch or electrical circuit into a smart one. Therefore, you do not need to replace your current wall switches to upgrade your home.

Why choose the Sonoff MINI Extreme (MINIR4)?

After a straightforward installation, the device connects quickly to your 2.4GHz Wi-Fi network. Thanks to this, you can control your connected lights and appliances remotely via the free eWeLink app. Set automated schedules and create custom smart scenes. Furthermore, this smart switch supports local LAN control. This means your automated devices stay fully functional within your local network even during an internet outage.

Innovative Detach Relay Mode

A standout feature of the Sonoff MINIR4 is its “Detach Relay” mode. In this mode, the state of the external wall switch and the internal relay are completely separated. In fact, pressing the physical wall switch will not cut power to your smart bulb directly. Instead, that physical click can trigger a smart scene to control other smart devices in your network.

Built-in eWeLink-Remote Bluetooth Gateway

This module also functions as a local gateway for eWeLink-Remote Bluetooth accessories. This includes devices like the Sonoff R5 wireless switch or the S-MATE module. Consequently, you can easily add new wireless control points around your home. You can achieve all of this without running new wires or relying on an active internet connection.

Safety and Technical Specifications

The device is manufactured from high-quality, heat-resistant materials. Additionally, it holds all necessary certifications for the European market. Please note that both a live (L) and a neutral (N) wire are required for installation inside the wall box. However, professional installation by a qualified electrician is highly recommended. Always turn off the main circuit breaker before starting any electrical work.