SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only

SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only

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Product Description SONOFF S31 WiFi Smart Plug – Enjoy your smart home life. App Download : Search on App store, eWeLink, or Scan the Qr code on the User Manual and install it. Easy to Set Up – Works with App Step 1: Download eWeLink App; Step 2: Plug the Smart Wi-Fi Plug into any outlet; Step 3: Configure Smart Wi-Fi Plug preferences on eWeLink App. Power Consumption Monitoring Keep track of real-time power, current and voltage of your appliances and reports on eWeLink APP. Overload Protection Set threshold value including power, current and voltage to ensure devices work securely. Certified Safe ETL/FCC/RoHS certificated – Secure and guaranteed SONOFF S31 WiFi Smart Plug works with your existing home Wi-Fi (2.4 GHz band) Technical Specifications Model Number: S31 WiFi Requirement: 2.4Ghz Only Rated Voltage: 120V Rated Current: 15A Max Ac Frequency: 2.4 Ghz Max power: 1800W Note: The maximum power changed as the local voltage.
Simple Setup and Use: plug in, open eWeLink APP, click the “+” in the upper right corner to pairing, and get started in minutes.
Voice Control – Works with Amazon Alexa and Google Home to start a voice-controlled home.
APP Remote Control: Manage electronic devices from anywhere.
Set Schedule or Timer: Create schedules to turn plugs on and off at specific times.User will control their decoration lights via timer functions.
Power Consumption Monitoring: Keep track of real-time power, current and voltage of your appliances and reports on APP; Store 100 days of electricity usage data and total electricity cost.
Secure and Guaranteed: ETL/FCC/RoHS certificated.

$9.23

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Price: $9.23
(as of Dec 24, 2024 18:48:35 UTC – Details)



Product Description SONOFF S31 WiFi Smart Plug – Enjoy your smart home life. App Download : Search on App store, eWeLink, or Scan the Qr code on the User Manual and install it. Easy to Set Up – Works with App Step 1: Download eWeLink App; Step 2: Plug the Smart Wi-Fi Plug into any outlet; Step 3: Configure Smart Wi-Fi Plug preferences on eWeLink App. Power Consumption Monitoring Keep track of real-time power, current and voltage of your appliances and reports on eWeLink APP. Overload Protection Set threshold value including power, current and voltage to ensure devices work securely. Certified Safe ETL/FCC/RoHS certificated – Secure and guaranteed SONOFF S31 WiFi Smart Plug works with your existing home Wi-Fi (2.4 GHz band) Technical Specifications Model Number: S31 WiFi Requirement: 2.4Ghz Only Rated Voltage: 120V Rated Current: 15A Max Ac Frequency: 2.4 Ghz Max power: 1800W Note: The maximum power changed as the local voltage.
Simple Setup and Use: plug in, open eWeLink APP, click the “+” in the upper right corner to pairing, and get started in minutes.
Voice Control – Works with Amazon Alexa and Google Home to start a voice-controlled home.
APP Remote Control: Manage electronic devices from anywhere.
Set Schedule or Timer: Create schedules to turn plugs on and off at specific times.User will control their decoration lights via timer functions.
Power Consumption Monitoring: Keep track of real-time power, current and voltage of your appliances and reports on APP; Store 100 days of electricity usage data and total electricity cost.
Secure and Guaranteed: ETL/FCC/RoHS certificated.

Customers say

Customers find the electrical plug functional and useful for home automation. They appreciate its ability to monitor energy usage and digitally record power consumption. Many are satisfied with its flashability and value for money. However, some have experienced issues with pairing and WiFi connectivity. Opinions differ on setup ease and build quality.

AI-generated from the text of customer reviews

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Based on 12 reviews

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  1. Adrian –

    Nice product
    It performs its intended functions well and is notably easy to set up

    Adrian –

  2. David –

    The most fun you can legally have for under $10
    Didn’t try the stock firmware or app. Went straight from the box to ESPHome. It has energy monitoring, which is cool, but can be very chatty without configuring a throttle_average filter.The good:* It’s basically an ESP-01 with a button, a relay and a status LED. (8266 and 1M flash)* If you know what you’re doing, you can re-flash it with ESPHome. Plenty of videos out there.* It’s ETL certified.* Does not block the other outlet in duplex receptacle.The bad:* No pin header or through-hole for UART, only pads. Makes serial connection for re-flashing a bit more of a challenge.* Energy monitor sends frequent WiFi traffic unless throttled.For the price, it’s a beautiful addition to Home Assistant. I will definitely buy more of these.

    David –

  3. Engineer – Midwest, US –

    Will not pair with WiFi / Meaningless Error Messages
    Device comes with a very small multi-fold paper instruction which doesn’t provide complete instructions for use.It does redirect you (via QR code) to a mobile App which also seems to be incomplete. The App refers you to the paper instructions (calling it a manual). The paper instructions refer you to the App and primarly provides directions on how to set the device in one of two pairing modes (Quickpair or Compatible).Quick Pairing promises to magically pair with the device if you enter your home 2.4GHz wireless network ID and password. Failure of QuickPair suggests Compatible mode. Compatible pairing mode instructions (paper) tell you to connect to the device’s WIFI network, but the App immeditately prompts you to connect to a different network to proceed. Doing so fails the pairing.Even if the plug is sitting on top of the wireless router, it complains the Wireless network is too weak (even if the phone you a pairing with has a stong signal indicator).Each attempt to pair / cycle runs 3 minutes. I am a computer engineer and have been in I/T for decades. I have many other wireless outlets in my home that function well on their own custom applications and Alexa integrations.This device seems to be faulty (beyond presenting blinking blue lights). The blinking blue lights are pleasant enough, but do not meet the advertised description.

    Engineer – Midwest, US –

  4. Nikki –

    Very happy
    You can monitor your appliance electric consumption. Work great!

    Nikki –

  5. Brad Swink –

    Works good, but pairing was tricky.
    Pairing this plug with the eWeLink app and getting it on the wifi proved to be more difficult than I expected. Initially pairing kept failing and I was trying to follow the instructions provided with the box. I was able to find the wifi network that it was broadcasting but then I couldn’t get it to accept that network to finish pairing within the app. After googling I stumbled upon a help page for the eWeLink app and figured out the issue. I use Unifi equipment for my home networking. I have the APs setup to push all capable clients to 5GHz bands.Now I will say that I have a Kasa smart plug and was able to pair with it much easier. I think maybe the Kasa app uses bluetooth to discover the device and connect initially to push the wifi information over to it but it was very simple.The sonoff plug only operates on 2.4Ghz bands, which is common with smart home devices. What I had to end up doing is to temporarily turn off 5GHz radio on my wifi network so that my phone could pair with the device on 2.4. Once the device was paired I was able to reactivate the 5Ghz radio. The sonoff stayed connected at 2.4Ghz and capable devices reconnected to 5Ghz.If you can get past the pairing issues though there are three things this plug has going for it:1. Its very cheap2. It works with Home Assistant and Google Home.3. It can monitor energy usage which is great for automations within home assistantOverall I would say it’s a great deal at this price point. If I need to buy anymore now that I know about the 2.4Ghz issue setting it up should be a breeze. Hopefully my review might save someone a hassle.

    Brad Swink –

  6. Bryan Mayland –

    Sonoff been at this for years
    Sonoff has been making ESP8266-based smart plugs and devices for must be a decade now and I’m so happy they do. These can be easily flashed over to Tasmota thanks to the case being held together with a couple of screws, rather than some other devices which have their enclosures sealed. Power monitoring works fine and you get all the other features of Tasmota like MQTT support, small scripts (rules), etc. Note that Tasmota states these have their DC GND pin hooked to the main’s neutral pin which means you should not try to attach external sensors due to the shock risk. Used as just a smart outlet, I trust the Sonoff name as an established player in this market.I’ve never used the Sonoff app, but I guess that’s nice for people who don’t want just a standalone system (requires a cloud connection for the devices I believe).

    Bryan Mayland –

  7. Jeremy Clark –

    Super reliable!
    I use this for the 110V charger for my PHEV. I set up a schedule so that it only charges during off peak hours. I plug in when I get home and it charges while I sleep! I haven’t needed to adjust, reset, or reconfigure anything. I can see how much charging was done and when right in the app.

    Jeremy Clark –

  8. Wizz A. Paul –

    Ya tengo varios contactos inteligentes trabajando, de la marca TPlink en sus modelos Tapo y Kasa, me gustan de ellos que son muy faciles de configurar y que tras un corte de energía regresan inmediatamente y con el último estado en que se encontraban, además de que se programan fácilmente para horarios fijos, cuenta regresiva y con temporizador. Además traen la función de atardecer y amanecer. Todo esto no lo trae el Sonoff, solo lo compré porque me interesa monitorear el consumo de algunos aparatos mientras estoy fuera de casa o en un lugar diferente a donde se encuentra el aparato. Por lo demás es un buen dispositivo, muy funcional.

    Wizz A. Paul –

  9. Roberto Baltazar –

    Excelente, estuve buscando un apagador inteligente con sensor de consumo y este es simplemente genial, no tiene tantas opciones de automatización, sin embargo, funciona correctamente y ya solo es hacer uso de algún hub de IoT (Alexa, Google Home, Smart Life, Home Assistant, etc.) para complementar. Recomendado ampliamente.

    Roberto Baltazar –

  10. Raul –

    Se compró para hacer inteligente el árbol de navidad, dos series de luces LED de bajo consumo (según la app nunca pasó de 40 Watts). Se configura a través de eWeLink (la app que usa el ecosistema Sonoff) y luego de ahí se comparte con Alexa para poder controlarla con voz. Una maravilla, casi no ocupa espacio y se siente bastante confiable (a diferencia de otras alternativas en el mercado). Este modelo además trae el plus de medir el consumo, entonces mejor no podría ser.

    Raul –

  11. Antonio Valdeon –

    Llego rápido y todo perfecto, lo que fue pésimo es el servicio de entrega en farmacias del ahorro

    Antonio Valdeon –

  12. Sergio Vivar –

    Cumple todo lo que promete, lo utilizo principalmente para medir el consumo eléctrico

    Sergio Vivar –

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