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🔌 SONOFF S-Mate 2 Neutral-less Wall Switch Helper: No More Cable Pulling



Want to make your home smarter but your junction boxes lack a neutral wire? No need for renovations or breaking down walls. SONOFF S-Mate 2 is a revolutionary auxiliary module that allows you to use smart relays like the MiniR4 or Basic R4 in older electrical installations without a neutral wire. Making seemingly "impossible" installations possible in Enoras and Reqasmart projects, this device manages the system wirelessly by being hidden behind your switch.



How it works? (eWeLink - Remote Technology)


S-Mate 2 is not a standard relay; it's a signal transmitter. It fits behind your wall switch and is battery-operated.

  • When you press the button, the S-Mate 2 transmits this command via the " eWeLink-Remote " signal.

  • The signal reaches a neutral relay (e.g., MiniR4) located next to the lamp (e.g., in a chandelier base or suspended ceiling).

  • This way, you can make the system completely smart without having to run a neutral wire to the switch box.



5-Year Battery Life and 3-Channel Support


  • Powered by its built-in CR2477 battery, the S-Mate 2 offers up to 5 years of battery life thanks to its optimized energy consumption.

  • Thanks to its 3-channel input, you can turn single, double, or triple switches into smart switches simultaneously.

  • You get the seamless comfort of a smart home while retaining the feel of a mechanical switch.



Compact Design and Easy Assembly


With dimensions of just 40.3x37.4mm , it fits comfortably even in the narrowest junction boxes. Without changing your physical switches, simply by attaching this small module to the back, you can add timing, voice command (Alexa/Google Home), and scenario features to your system.



🛠️ SONOFF S-Mate 2 Technical Specifications

Feature

Technical Details

Product Model

SONOFF S-MATE 2 (Switch Mate)

Required Equipment

It doesn't work on its own (MiniR4/BasicR4 etc. are required)

Number of Channels

1, 2 or 3 Button Inputs

Power supply

CR2477 Battery (3V)

Battery Life

Approximately 5 years

Communication Protocol

eWeLink-Remote (Special RF Signal)

Dimensions

40.3 x 37.4 x 18.3 mm

Compatibility

Spring (Push) and Rocker Switches



🏗️ Enoras Ankara Smart Home Solutions with Sonoff Products


S-Mate 2 requires precise configuration due to its technical operating principle and eWeLink-Remote pairing requirements. At Enoras , our Ankara -based technical team provides full support regarding the compatibility of S-Mate 2 with various relays and how to pair it, primarily in Çankaya, Gölbaşı, İncek, and Ümitköy . Transform your homes without neutrals with the Reqasmart vision, without any demolition or damage, and with the assurance of Enoras .


For neutral-free smart home solutions and switch-behind module installations in Ankara, contact us now.

Sonoff S-Mate Wireless Switch Module

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