R 249.00R 285.00Save R 36.00

In Stock — 216 available

⚡ SONOFF MINIR4 — Ultra-Compact WiFi Smart Switch (ESP32, 10A)

The SONOFF MINI Extreme (MINIR4) is one of the smallest WiFi smart switches on the market. Powered by the ESP32 dual-core chip for rock-solid performance, it fits behind your existing wall switch — even inside the smallest European-standard mounting boxes. Control lights, fans, and appliances up to 10A via the eWeLink app, voice assistants, or your existing physical switch. Features Detach Relay mode, eWeLink-Remote gateway, and support for almost any type of external switch.

MINIR4 · WiFi · 1 Gang · 10A MINI-2GS · Matter · 2 Gang · 16A

🚚

Free Delivery

Orders over R2,500

🇿🇦

Local Stock

Ships from Gauteng

⚡

10A Max

Lights · Fans · Appliances

📏

Ultra Compact

39.5 × 33 × 16.8 mm

⚡ Key Features

Ultra-Compact Design (39.5 × 33 × 16.8 mm) — fits inside the smallest EU-type, 86-type, and 120-type mounting boxes behind your existing wall switch
ESP32 Dual-Core Chip — faster response, more stable WiFi connection, and ample memory for reliable long-term operation
10A Resistive Load — controls lights, fans, heaters, coffee machines, and other appliances up to 10A (2,300W at 230V)
Versatile External Switch Support — connects to momentary, latching, SPDT, door exit switches, and dry contact sensors
Detach Relay Mode — external switch and relay operate independently; toggling the physical switch doesn't change the relay state, ideal for smart light setups
eWeLink-Remote Gateway — pair with SONOFF R5 or S-MATE sub-devices for local Bluetooth control without WiFi; enables multi-switch setups
Neutral Wire Required — requires N (neutral) line for installation
TÜV, CE & FCC Certified — meets stringent safety and reliability standards

🏠 What Can You Control?

💡

Lights & Downlights

Add smart control to ceiling lights, downlights, and lamps. Keep your existing wall switch and gain app + voice control. Schedule lights for sunrise/sunset.

🌀

Extractor Fans

Automate bathroom or kitchen extractors. Pair with a humidity sensor (THS01 + TH controller) or set timers via the app.

🔌

Small Appliances

Control coffee machines, water heaters (under 10A), and other plug-in appliances. Set schedules and smart scenes.

🎯

Smart Scenes

Trigger other SONOFF devices when the switch is toggled. "When lounge light turns off → lock front door → arm security." Build powerful multi-device automations.

💡 Detach Relay Tip: If you use smart bulbs (like SONOFF Zigbee bulbs), enable Detach Relay mode. This keeps the relay always ON (so your smart bulbs stay powered) while letting the physical switch trigger scenes instead — like dimming, colour changes, or activating a "movie mode" group.

🔌 Wiring & Installation

Wiring Requirements

MINIR4 requires a neutral wire (N) at the switch location. It connects in-line between your existing switch and the light/load. Terminals: Lin (live in), Lout (live out to load), N (neutral), S1/S2 (external switch input). Maximum external switch wire length: 20 metres. Compatible with standard EU, 86-type, and 120-type mounting boxes.

⚠️ Neutral Wire Required. If your switch box doesn't have a neutral wire, consider the ZBMINI-L2 (Zigbee, no neutral required) as an alternative. Alternatively, a qualified electrician can route neutral to the switch box.

📋 Technical Specifications

Model	MINIR4 (MINI Extreme)
MPN	MINIR4
MCU / Chip	ESP32 (dual-core)
Connectivity	WiFi IEEE 802.11 b/g/n 2.4 GHz + Bluetooth (eWeLink-Remote)
Input / Output	100–240V AC, 50/60 Hz, 10A Max
Max Load	10A resistive (2,300W at 230V)
Relay Channels	1 (single gang)
External Switch	Momentary / Latching / SPDT / Door Exit / Dry Contact
Detach Relay	Yes
eWeLink-Remote Gateway	Yes (R5 / S-MATE sub-devices)
Neutral Wire	Required
Dimensions	39.5 × 33 × 16.8 mm
Weight	32 g
Casing Material	PC V-0 (flame retardant)
App	eWeLink (iOS / Android)
Voice Control	Amazon Alexa, Google Assistant
Home Assistant	Yes (eWeLink LAN / Sonoff LAN integration)
Certifications	TÜV, CE, FCC

🔄 MINIR4 vs MINI-2GS — Which One?

Feature	MINIR4	MINI-2GS
Channels	1 gang (single load)	2 gang (dual load)
Max Load	10A total	10A/gang, 16A total
Protocol	WiFi (eWeLink)	Matter over WiFi
Ecosystem	eWeLink + Alexa + Google	Apple Home + Google + Alexa + HA
eWeLink-Remote	Yes (R5 / S-MATE)	No
Best For	Single light/fan + eWeLink scenes	2-gang switch plates + Matter cross-platform

❓ Frequently Asked Questions

Does MINIR4 require a neutral wire?

Yes. MINIR4 requires a neutral wire (N) at the switch location. If you don't have neutral at the switch, consider the ZBMINI-L2 (Zigbee, no neutral needed) or have an electrician route the neutral wire to the switch box.

Can I still use my existing wall switch?

Yes. MINIR4 supports two-way control — you can control the load from both the physical wall switch and the eWeLink app, voice assistants, or automations. The physical switch connects to the S1/S2 terminals.

What is Detach Relay mode?

In Detach Relay mode, the physical switch and relay operate independently. Pressing the wall switch won't change the relay state — instead, it can trigger a smart scene. This is perfect for smart bulbs: the bulbs stay powered on, and the physical switch becomes a scene trigger.

What is eWeLink-Remote and how does it work?

eWeLink-Remote is a local Bluetooth control protocol. MINIR4 acts as a gateway — pair it with a SONOFF R5 scene controller or S-MATE wireless switch, and they can control the MINIR4 locally without WiFi. Range is up to 50 metres. Great for multi-switch setups or as a backup during internet outages.

Does it work with Home Assistant?

Yes. MINIR4 supports LAN control and integrates with Home Assistant via the eWeLink or Sonoff LAN integration. It also supports custom firmware (ESPHome/Tasmota) via the ESP32 chip for advanced users.

Can I flash it with Tasmota or ESPHome?

Yes — the MINIR4 uses an ESP32 chip with exposed pin headers for serial flashing. The digiblurDIY community has published ESPHome configs and GPIO pinouts. Note: flashing custom firmware voids the warranty and requires soldering skills.

🤝 Need Help? We're Here for You!

📞

Call Us

Jesse: 071 678 8719
Jason: 084 505 7481

🏢

Visit Us

8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709

📧

Email

info@eiferer.co.za

Tiny Switch. Big Smart Home Upgrade.

SONOFF MINIR4 — hides behind your wall switch, controls everything from your phone.