1. Product Overview
The SONOFF S61s Smart Plug is a versatile device designed to integrate seamlessly into your smart home ecosystem. It offers remote control, voice control, smart timing, and energy monitoring capabilities for connected appliances. This manual provides essential information for safe and efficient use of your smart plug.

Image 1.1: Front view of the SONOFF S61s Smart Plug, showing its compact design and power button.
2. Setup and Installation
2.1 What's in the Box
- SONOFF S61s Smart Plug
- User Manual
2.2 Initial Setup
- Download the eWeLink App: Search for "eWeLink" in your mobile app store (iOS or Android) and install it.
- Register/Log In: Open the eWeLink app and register a new account or log in with an existing one.
- Plug In the Device: Insert the SONOFF S61s Smart Plug into a standard wall outlet. The LED indicator on the plug 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 App: In the eWeLink app, tap the "+" icon to add a new device. Follow the on-screen instructions to connect the plug to your 2.4GHz Wi-Fi network.
- Matter Pairing (Optional): For Matter-compatible ecosystems, use the Matter pairing code provided with the device or found in the eWeLink app to integrate the plug directly with your Matter controller (e.g., Apple Home, Google Home, Home Assistant).

Image 2.1: The SONOFF S61s Smart Plug is compatible with Matter, allowing integration with Home Assistant, Apple Home, Google Home, Alexa, and Samsung SmartThings.
2.3 Smart Home Integration
The S61s Smart Plug supports multiple smart home platforms for enhanced control:
- Alexa: Enable the eWeLink skill in the Alexa app and link your account.
- Google Home: Link your eWeLink account in the Google Home app.
- Apple Home/HomeKit: Use Matter pairing or the eWeLink app to add the device to Apple Home.
- IFTTT, SmartThings, Home Assistant: Follow specific integration guides for these platforms, typically involving linking your eWeLink account or using Matter.

Image 2.2: Seamless integration with the Apple ecosystem, supporting Siri, iPhone, iPad, and Apple Watch for control.
3. Operating Instructions
3.1 Remote Control via App
Once connected, you can control the plug from anywhere using the eWeLink app. Tap the device icon to turn it on or off. You can also check its status in real-time.
3.2 Voice Control
Use voice commands through compatible assistants like Alexa, Google Assistant, or Siri to control your connected devices hands-free.
- Alexa: "Alexa, turn on the living room light."
- Google Assistant: "Hey Google, turn off the fan."
- Siri: "Hey Siri, turn on S61s."

Image 3.1: Voice control allows hands-free operation of your devices through compatible smart speakers.
3.3 Smart Timer Functions
Automate your devices with flexible timer options:
- Schedule: Set specific times for devices to turn on or off daily.
- Countdown: Turn off a device after a set duration (e.g., 10 minutes for a coffee maker).
- Cyclic Timer: Repeat on/off cycles (e.g., turn on for 30 minutes, then off for 4 hours).
- Random Timer: Simulate presence by randomly turning lights on and off while you are away.

Image 3.2: Smart timer functions provide automated control for various scenarios, from countdowns to random light activation.
3.4 Energy Monitoring
The S61s allows you to monitor the power consumption of connected devices in real-time. View voltage, current, and power usage through the eWeLink app to identify energy-intensive appliances and manage your electricity bill.

Image 3.3: The eWeLink app displays detailed energy consumption data, helping users track and manage electricity usage.
3.5 Smart Scenes
Create custom smart scenes in the eWeLink app to automate multiple devices based on conditions like time, device status, or sensor triggers. For example, turn on lights and a fan when you arrive home.

Image 3.4: Smart scenes allow for complex automation, such as receiving notifications when a task is completed by a connected appliance.
4. Maintenance and Safety
4.1 General Maintenance
- Keep the device clean by wiping it with a dry, soft cloth.
- Avoid using harsh chemicals or abrasive cleaners.
4.2 Safety Precautions
- Do not expose the device to water or high humidity.
- Operate within the specified temperature range (-10°C to 40°C).
- The plug features overload protection (up to 16A / 3840W) and overcharge protection to prevent damage to connected devices and ensure safety.
- The device is constructed with flame-retardant materials for enhanced safety.
- Includes child protection to block access to pinholes.

Image 4.1: The SONOFF S61s provides overload protection up to 16A, with adjustable current limits via the app.

Image 4.2: Overcharge protection helps safeguard devices from frequent charging cycles, with adjustable power limits.
5. Troubleshooting
If you encounter issues with your SONOFF S61s Smart Plug, refer to the following common problems and solutions:
- Device not connecting to Wi-Fi:
- Ensure your Wi-Fi network is 2.4GHz. The S61s does not support 5GHz Wi-Fi.
- Check your Wi-Fi password for accuracy.
- Move the smart plug closer to your Wi-Fi router.
- Reset the smart plug by pressing and holding the power button for 5 seconds until the LED blinks rapidly, then attempt pairing again.
- Device frequently disconnects:
- Verify your Wi-Fi signal strength at the plug's location.
- Ensure your router firmware is up to date.
- Reduce interference from other wireless devices.
- Voice control not working:
- Confirm that the eWeLink skill/service is correctly linked in your smart assistant app (Alexa, Google Home).
- Ensure the device name in eWeLink matches the name used in voice commands.
- Energy monitoring data is incorrect:
- Ensure the device is properly connected and receiving power.
- Check for any app updates for eWeLink.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | S61STPF |
| Plug Type | Type E/F |
| Input | 100V-240V~ 50/60Hz 16A Max |
| Max. Load | 3840W |
| Casing Materials | PC (Polycarbonate) |
| 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 (LxWxH) | 5.6 x 5 x 8.4 cm |
| Weight | 86 grams |

Image 6.1: Detailed dimensions and technical specifications of the SONOFF S61s Smart Plug.
7. Warranty and Support
7.1 Warranty Information
The SONOFF S61s Smart Plug comes with a 2-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
7.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact SONOFF customer support:
- Email: support@itead.cc
- Online Store: Visit the SONOFF Official Store for more product information and resources.





