1. Introduction
The SONOFF S61s Smart WiFi Plug is a connected device designed to provide remote control, energy monitoring, and smart automation for your electrical appliances. This plug supports Matter protocol, allowing seamless integration with various smart home ecosystems including Alexa, Google Home, and Apple Home. It features a maximum load capacity of 16A/3840W, ensuring compatibility with a wide range of household devices.
2. Safety Information
- Do not exceed the maximum load of 16A (3840W). Overloading can cause overheating and damage to the device or connected appliances.
- Ensure the plug is fully inserted into a wall socket.
- Do not disassemble or modify the device. Refer all servicing to qualified personnel.
- Keep the device away from water, moisture, and high temperatures.
- This device is for indoor use only.
- The plug features child protection to block access to pinholes.
3. Package Contents
The package for the SONOFF S61s Smart WiFi Plug (Model S61STPF) typically includes:
- 1 x SONOFF S61s Smart WiFi Plug
- 1 x User Manual (this document)
4. Product Overview
The SONOFF S61s Smart WiFi Plug is a compact, white smart plug designed for European Type E/F sockets. It features a power button with an indicator light and is built with robust polycarbonate material.

Image: SONOFF S61s Smart WiFi Plug highlighting thoughtful design elements such as relay lifespan, child protection, night mode, and CE/ROHS certification.
Key Features:
- Remote Control: Control connected devices from anywhere via the eWeLink app.
- Voice Control: Compatible with Alexa, Google Home, and Apple Home for hands-free operation.
- Energy Monitoring: Track real-time power consumption (voltage, current, power) and electricity bills.
- Smart Timer: Set schedules, countdowns, and loop timers for automated control.
- Matter Compatible: Seamless integration with Matter-enabled smart home platforms.
- Safety Protections: Includes overload, overcharge, and surge protection.
- Child Protection: Designed to prevent access to live parts.

Image: A visual summary of the SONOFF S61s Smart Plug's main features, including app and voice control, energy monitoring, various protections, timer scheduling, Matter compatibility, and smart scene creation.
5. Setup
5.1 Initial Setup with eWeLink App
- Download the eWeLink App: Search for "eWeLink" in your mobile app store (iOS or Android) and install it.
- Register/Log In: Open the app and register a new account or log in with an existing one.
- Power On the Device: Plug the SONOFF S61s into a wall socket. The indicator light should start blinking, indicating it's in pairing mode. If not, press and hold the power button for 5 seconds until it blinks rapidly.
- Add Device: In the eWeLink app, tap the "+" icon at the bottom center or top right to add a device. Select "Quick Pairing" or scan the QR code on the device/packaging.
- Connect to Wi-Fi: Follow the on-screen instructions to connect the plug to your 2.4GHz Wi-Fi network. Ensure your phone is also connected to the same 2.4GHz network during setup.
- Name Your Device: Once successfully added, you can name your smart plug for easy identification.
5.2 Matter Pairing (Optional)
The SONOFF S61s supports Matter, allowing integration with Matter-compatible hubs and apps. This typically involves scanning a Matter QR code or entering a setup code provided with the device.

Image: Diagram illustrating Matter compatibility with Home Assistant, Apple Home, Google Home, Alexa, and Samsung SmartThings.
For Matter integration, ensure you have a Matter controller (e.g., Apple HomePod Mini, Amazon Echo, Google Nest Hub) and follow the specific pairing instructions provided by your Matter ecosystem's app (e.g., Apple Home app, Google Home app, Alexa app).
6. Operating Instructions
6.1 Manual Control
Press the physical power button on the front of the SONOFF S61s to manually turn the connected appliance ON or OFF.
6.2 App Control
Open the eWeLink app, select your SONOFF S61s device, and tap the power icon to toggle the connected appliance ON or OFF remotely.
6.3 Voice Control
Once linked with a voice assistant (Alexa, Google Home, Apple Home), you can use voice commands to control your plug. Examples:
- "Alexa, turn on [Device Name]."
- "Hey Google, turn off [Device Name]."
- "Siri, turn on [Device Name]."
7. Energy Monitoring
The SONOFF S61s provides real-time energy consumption data, allowing you to monitor voltage, current, and power of connected devices. You can also view historical data and estimated electricity bills within the eWeLink app.

Image: Screenshot of the eWeLink app displaying energy consumption data and estimated electricity bills for various devices in a home setting.
Overload Protection
The plug features adjustable overload protection. You can set maximum current and power thresholds in the app. If the connected device exceeds these limits, the smart plug will automatically cut off power to prevent damage.

Image: App interface showing settings for MaxPower and MaxCurrent for overload protection, with a visual representation of the plug's protection up to 16A.
8. Smart Timer & Automation
Automate your devices with flexible timing options and smart scenes.
Timer Functions
- Schedule: Set specific ON/OFF times for daily or weekly routines.
- Countdown: Turn off a device after a set duration.
- Loop Timer: Repeat ON/OFF cycles for a specified period.
- Random Timer: Simulate occupancy by randomly turning lights or other devices ON/OFF.

Image: Examples of smart timer usage, including a 10-minute countdown for an egg cooker, a 30-minute open/4-hour close cycle for a fan, and random light activation to simulate presence.
Smart Scenes
Create custom automation rules based on various triggers (e.g., time, device status, sensor input) and actions. For example, turn on a light when you arrive home or turn off all devices when you leave.
9. Troubleshooting
- Device Offline: Ensure the plug is within Wi-Fi range and your router is functioning correctly. Check if the Wi-Fi network is 2.4GHz. Try restarting the plug by unplugging and re-plugging it.
- Pairing Failure: Make sure your phone is connected to a 2.4GHz Wi-Fi network during pairing. Reset the plug by holding the button for 5 seconds until the indicator blinks rapidly, then try pairing again.
- Voice Control Not Working: Verify that your SONOFF account is correctly linked to Alexa, Google Home, or Apple Home. Check the device name in the app and use it consistently in voice commands.
- Overload Protection Triggered: If the plug repeatedly turns off, check the power consumption of the connected appliance. Reduce the load or adjust the overload protection settings in the app if necessary, ensuring not to exceed the plug's maximum capacity.
10. Specifications
| Feature | Specification |
|---|---|
| Model | S61STPF |
| Plug Type | Type E/F |
| Input | 100V-240V~ 50/60Hz 16A Max |
| Max. Load | 3840W |
| Casing Materials | Polycarbonate (PC) |
| Working Temperature | -10°C ~ 40°C |
| Wireless Connection | Wi-Fi IEEE 802.11 b/g/n 2.4GHz |
| Stand-by Power | <0.5W |
| Working Humidity | 5% ~ 95% RH, non-condensing |
| Dimensions (L x W x H) | 5.6 x 5 x 8.4 cm |
| Weight | 86 Grams |
| Certifications | CE |
| Control Method | Application, Voice |
| Connectivity Protocol | Matter |

Image: Detailed technical specifications and dimensions of the SONOFF S61s Smart Plug.
11. Maintenance
To ensure optimal performance and longevity of your SONOFF S61s Smart WiFi Plug:
- Clean the device regularly with a dry, soft cloth. Do not use liquid cleaners or aerosols.
- Avoid exposing the device to direct sunlight or extreme temperatures.
- Ensure proper ventilation around the plug, especially when high-power appliances are connected.
- Periodically check for firmware updates through the eWeLink app to benefit from new features and improvements.
12. Warranty and Support
SONOFF products are designed for reliability and safety. This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the official SONOFF website or contact their customer support directly.
You can visit the official SONOFF store for more information and support: SONOFF Store







