---
product_id: 278517579
title: "SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only"
brand: "sonoff"
price: "48668CFA"
currency: XOF
in_stock: false
reviews_count: 8
url: https://www.desertcart.sn/products/278517579-sonoff-s31-wifi-smart-plug-with-energy-monitoring-15a-smart
store_origin: SN
region: Senegal
---

# 15A max current for heavy-duty devices 100 days of detailed energy monitoring Full remote control via eWeLink app SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only

**Brand:** sonoff
**Price:** 48668CFA
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Power your smart lifestyle with precision and control!

## Quick Answers

- **What is this?** SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only by sonoff
- **How much does it cost?** 48668CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/278517579-sonoff-s31-wifi-smart-plug-with-energy-monitoring-15a-smart)

## Best For

- sonoff enthusiasts

## Why This Product

- Trusted sonoff brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Smart Setup:** Plug, pair, and power up your smart home in minutes with seamless eWeLink app integration.
- • **Customizable Scheduling:** Automate your devices with flexible timers and schedules to fit your lifestyle and boost efficiency.
- • **Precision Energy Insights:** Track real-time power, voltage, and current to optimize your energy consumption and save money.
- • **Certified Safety Assurance:** ETL, FCC, and RoHS certifications guarantee secure, reliable performance you can trust.
- • **Voice-Activated Convenience:** Hands-free control with Alexa and Google Home compatibility—because your time is valuable.

## Overview

The SONOFF S31 WiFi Smart Plug is a 15A, ETL-certified smart outlet that offers real-time energy monitoring and remote control via the eWeLink app. Compatible with Alexa, Google Home, and IFTTT, it supports scheduling and overload protection, making it an essential upgrade for any connected home running on 2.4 GHz Wi-Fi.

## Description

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.

Review: worth it re-programmed with ESPHome or not - Can be configured for ESPHome/HomeAssistant. Works great! I use it to monitor power usage to trigger "running" and "done" type notifications for my not-smart laundry and dishwasher, where i disabled the button and set the led to match the running state. Why this instead of zigbee? because the highish sample rate power number stream isn't so great for blasting through a zigbee network, that might have hops through battery powered devices. it's good to keep zigbee more event based rather than stream based, for latency and power saving.
Review: Good for flashing to ESPHome - This is a great power monitoring smart plug if you are willing to flash ESPHome to "uncloud" it. This turns it into a locally controlled device that does not "call home" or require proprietary apps to function. Easy to take apart and reassemble after modding. Fixes many of the pain points described by other reviewers (poor WiFi, app pairing issues). Otherwise for the sake of privacy you are better off with a Zigbee model like the S31 Lite.

## Features

- 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 desertcart 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SONOFF |
| Color | White |
| Connector Type | Plug in |
| Material | Polycarbonate (PC) |
| Product Dimensions | 1.57"D x 3"W x 1.3"H |
| Voltage | 120 Volts (AC) |

## Product Details

- **Brand:** SONOFF
- **Color:** White
- **Voltage:** 120 Volts (AC)
- **Product Dimensions:** 1.57"D x 3"W x 1.3"H
- **Material:** Polycarbonate (PC)

## Images

![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only - Image 1](https://m.media-amazon.com/images/I/512e9TkDK-L.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only - Image 2](https://m.media-amazon.com/images/I/51HPDgFpi4L.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only - Image 3](https://m.media-amazon.com/images/I/61KZ6pbp4lL.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only - Image 4](https://m.media-amazon.com/images/I/61avhgWqdFL.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Timer Switch ETL Certified, Compatible with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz Wi-Fi Only - Image 5](https://m.media-amazon.com/images/I/71-9ZmdrzKL.jpg)

## Questions & Answers

**Q: Estos plugs vienen en su caja original?**
A: SI estos plugs vienen en su caja original

**Q: Does this resume a timer schedule after a power failure?**
A: Yes it can resume a set power state and keeps it's custom timer settings.

**Q: Can this send me a notification if the energy or power reaches below or above a certain level?**
A: Yes. I flash all my s31s with ESPHome so i can use them with Home Assistant (you can use them with HA without flashing them, but they dont work reliably w/ the stock cloud-connected software, at least not reliably enough for switching power on/off). I then use Node Red in HA to read the power consumption in watts and send me a message via Telegram if a condition is met. Works great to remind me to turn off my home entertainment equipment before bed. Also works to alert me when the washing machine is done.

**Q: Does this resume a timer schedule after a power failure?**
A: Yes, because the timer program is based on cell phone app. The sonoff is just a wifi relay commanded by app.

## Customer Reviews

### ⭐⭐⭐⭐⭐ worth it re-programmed with ESPHome or not
*by B***I on December 31, 2025*

Can be configured for ESPHome/HomeAssistant. Works great! I use it to monitor power usage to trigger "running" and "done" type notifications for my not-smart laundry and dishwasher, where i disabled the button and set the led to match the running state. Why this instead of zigbee? because the highish sample rate power number stream isn't so great for blasting through a zigbee network, that might have hops through battery powered devices. it's good to keep zigbee more event based rather than stream based, for latency and power saving.

### ⭐⭐⭐⭐⭐ Good for flashing to ESPHome
*by D***K on June 5, 2025*

This is a great power monitoring smart plug if you are willing to flash ESPHome to "uncloud" it. This turns it into a locally controlled device that does not "call home" or require proprietary apps to function. Easy to take apart and reassemble after modding. Fixes many of the pain points described by other reviewers (poor WiFi, app pairing issues). Otherwise for the sake of privacy you are better off with a Zigbee model like the S31 Lite.

### ⭐⭐⭐⭐⭐ Installed customer firmware, most feature rich outlet for the price
*by T***M on November 5, 2025*

I installed custom firmware in each of these. Love these specific models because they offer great value for the price - you can monitor power usage and control outlets. They're seemingly durable and offer great features.

## Frequently Bought Together

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-29*