Sonoff WiFi Smart Switch S-Mate2 - Description
Upgrade your standard lighting setup to intelligent home automation with the Sonoff WiFi Smart Switch S-Mate2. Designed as an ultra-compact “eWeLink-Remote switch mate,” this device fits directly behind ordinary 1-, 2-, or 3-button rocker or push-button wall switches, turning them into battery-operated smart remotes without rewiring.
Zero Neutral Wire Required
Unlike conventional smart relay switches, the S-Mate2 is entirely battery-powered. It eliminates the frustration of rewiring older electrical boxes that lack a neutral wire, making it an ideal retrofit solution for residential and commercial properties across Cyprus.
Seamless Local & Smart Scene Control
Functioning as an eWeLink-Remote sub-device, the S-Mate2 communicates directly with eWeLink-Remote gateways (such as the SONOFF MINIR4, DUALR3, M5, or NSPanel Pro). This ensures lightning-fast local switching even if your external internet connection drops. When paired online, it can trigger custom multi-device smart scenes across your entire smart home ecosystem.
Key Features
- Long-Lasting Battery Life: Engineered for extreme energy efficiency with up to 5 years of battery operation.
- Compact Form Factor: Noticeably smaller than the original S-Mate, slipping effortlessly into tight European mounting boxes.
- Advanced Multi-Click Support: When paired with push-button momentary switches, it supports single-click, double-click, and long-press triggers for diverse scene activation.
- Multi-Channel Control: Supports 1-gang, 2-gang, and 3-gang traditional wall switches.
- No Neutral Wire Needed: Installs cleanly in switch boxes without needing a neutral line.
Sonoff WiFi Smart Switch S-Mate2 - Specifications
General
- Brand
- SONOFF
- Model
- S-Mate2
- Product Type
- Smart Switch Mate / Sub-Device
- Part Number (SKU)
- MS-25827
Power & Battery
- Power Supply
- Battery-powered (CR2477 / Lithium Coin Cell)
- Battery Life
- Up to 5 Years
- Neutral Wire Requirement
- No Neutral Wire Required
Connectivity & Automation
- Communication Protocol
- eWeLink-Remote
- Network Requirement
- Works via eWeLink-Remote Gateway
- Compatible Gateway Devices
- SONOFF MINIR4, DUALR3 / DUALR3 Lite, SwitchMan M5, NSPanel Pro, etc.
- Local Control
- Supported via Gateway (operates without active internet)
Switch Compatibility & Triggers
- Supported Switch Types
- 1-Gang, 2-Gang, or 3-Gang Rocker & Push-Button Switches
- Button Actions
- Single-Click, Double-Click, Long-Press (with momentary push buttons)
Physical Attributes
- Form Factor
- Ultra-Compact In-Wall / Flush Mounting Module
- Installation
- Behind existing wall switch in standard back box