1. Introduktion
The SONOFF S31 WiFi Smart Plug is a compact and intelligent outlet designed to bring convenience and energy efficiency to your home. With features like energy monitoring, voice control, and remote access, it allows you to manage your electronic devices from anywhere. This manual provides detailed instructions for setting up, operating, and maintaining your S31 Smart Plug.

Figure 1: SONOFF S31 WiFi Smart Plug and its accompanying eWeLink app interface showing energy consumption data.
2. Sikkerhedsoplysninger
Please read all safety warnings and instructions carefully before using this product to ensure safe operation and prevent damage. Keep this manual for future reference.
- The SONOFF S31 Smart Plug is ETL/FCC/RoHS certified, ensuring compliance with safety and environmental standards.
- It features overload protection. You can set threshold values for power, current, and voltage within the app to ensure connected devices operate safely and prevent potential hazards like overheating or fire.
- Maximum rated current: 15A. Maximum power: 1800W. Do not exceed these limits.
- Ensure the plug is fully inserted into a standard 120V outlet.
- Enheden må ikke skilles ad eller modificeres.
- Opbevares utilgængeligt for børn.

Figure 2: Key safety features of the SONOFF S31 Smart Plug, highlighting its certifications and protective mechanisms.
3. Produktfunktioner
The SONOFF S31 Smart Plug offers a range of features to enhance your smart home experience:
- Fjernbetjening: Manage electronic devices from anywhere using the eWeLink app.
- Stemmestyring: Kompatibel med Amazon Alexa og Google Home for håndfri betjening.
- Overvågning af strømforbrug: Spor effekt, strøm og volumen i realtidtage of your appliances. Store up to 100 days of electricity usage data and total electricity cost.
- Planlægning og timer: Create schedules and set timers to automatically turn devices on and off at specific times.
- Overbelastningsbeskyttelse: Set limits for power, current, and voltage to protect your devices.
- LAN kontrol: Control devices within your local network even without internet access.
- Del kontrol: Share control of the smart plug with family members through the eWeLink app.

Figur 3: Overview of the smart features available with the SONOFF S31 Smart Plug.
4. Opsætningsvejledning
Følg disse trin for at konfigurere dit SONOFF S31 WiFi Smart Plug:
- Download eWeLink-appen: Søg efter "eWeLink" on the App Store (iOS) or Google Play Store (Android), or scan the QR code provided in the quick start guide included with your product. Install the app on your smartphone or tablet.
- Tilmeld dig og log ind: Open the eWeLink app, register a new account if you don't have one, and then log in.
- Sæt Smart-stikket i stikkontakten: Insert the SONOFF S31 Smart Plug into any standard 120V wall outlet. Ensure the outlet is powered.
- Gå ind i parringstilstand: Press and hold the button on the smart plug for approximately 5 seconds until the LED indicator starts blinking rapidly. This indicates it's in pairing mode.
- Tilføj enhed i appen: Open the eWeLink app, tap the "+" icon in the upper right corner, and follow the on-screen instructions to add your device. You will need to select your 2.4GHz Wi-Fi network and enter its password. Note: The SONOFF S31 only supports 2.4GHz Wi-Fi networks. Ensure your device is connected to a 2.4GHz network during setup.
- Navngiv din enhed: Når parringen er gennemført, kan du navngive dit smartstik (f.eks. "Stue L"amp," "Coffee Maker") for easy identification and control.

Figure 4: Visual guide for the quick setup process of the SONOFF S31 Smart Plug.
5. Betjeningsvejledning
5.1. App-fjernbetjening
After successful setup, you can control your smart plug from anywhere with an internet connection:
- Åbn eWeLink-appen.
- Tap on the device name to toggle it on or off.
- Access detailed settings, including power monitoring, schedules, and timers, by tapping on the device icon.

Figure 5: Remote control of the smart plug via the eWeLink app.
5.2. Stemmekontrol
The SONOFF S31 is compatible with Amazon Alexa and Google Home. To enable voice control:
- Link your eWeLink account to your Amazon Alexa or Google Home app.
- Discover devices within the Alexa or Google Home app.
- Brug stemmekommandoer såsom:
- "Alexa, tænd for [enhedsnavn]."
- "Hej Google, sluk [enhedsnavn]."

Figure 6: Hands-free voice control with Amazon Alexa and Google Home.
5.3. Overvågning af strømforbrug
Monitor your energy usage directly from the eWeLink app:
- In the eWeLink app, select your S31 Smart Plug.
- Navigate to the "Consumption" or "Power Monitoring" section.
- View real-time power (Watts), current (Amps), and voltage (volt).
- Access historical data for up to 100 days to track trends and total electricity cost.

Figure 7: Detailed power consumption monitoring within the eWeLink app.
5.4. Overload Protection System
The S31 Smart Plug includes an overload protection system to safeguard your appliances and home:
- Within the eWeLink app, go to the device settings for your S31 Smart Plug.
- Locate the "Overload Protection System" (OPS) settings.
- Set maximum thresholds for power, current, and voltage. If the connected appliance exceeds these set limits, the smart plug will automatically turn off to prevent damage or fire.

Figure 8: Configuring overload protection settings for the SONOFF S31 Smart Plug.
6. Vedligeholdelse
For at sikre optimal ydeevne og levetid for dit SONOFF S31 Smart Plug:
- Keep the device clean and dry. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or sprays.
- Undgå at udsætte enheden for ekstreme temperaturer, fugt eller direkte sollys.
- Do not place heavy objects on the smart plug or connected cables.
- Regularly check for firmware updates in the eWeLink app to ensure you have the latest features and security enhancements.
7. Fejlfinding
If you encounter issues with your SONOFF S31 Smart Plug, refer to the following common problems and solutions:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Device cannot connect to Wi-Fi / Pairing fails. |
|
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| Enheden er offline i appen. |
|
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| Stemmestyring virker ikke. |
|
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8. Specifikationer
| Specifikation | Værdi |
|---|---|
| Modelnummer | S31 |
| WiFi-krav | Kun 2.4 GHz |
| Nominel voltage | 120V |
| Nominel strøm | 15A Maks |
| Max Power | 1800W |
| AC frekvens | 2.4 Ghz (This seems to be a typo in source, likely meant Wi-Fi frequency) |
| Produktdimensioner | 3 x 1.57 x 1.3 tommer |
| Varens vægt | 3.2 ounce |
| Materiale | Polycarbonat (PC) |
| Certificeringer | ETL, FCC, RoHS |
Note: The maximum power may vary based on local voltage.
9. Garanti og support
The SONOFF S31 WiFi Smart Plug comes with a 1 års garanti fra købsdatoen.
For technical support, troubleshooting assistance, or warranty claims, please visit the official SONOFF webwebstedet eller kontakt deres kundeservice. Gem din købskvittering som købsbevis af garantihensyn.
Du kan finde mere information og supportressourcer på SONOFF Store on Amazon.





