---
product_id: 305348230
title: "SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack)"
brand: "sonoff"
price: "€ 101.20"
currency: EUR
in_stock: false
reviews_count: 12
url: https://www.desertcart.sk/products/305348230-sonoff-s31-wifi-smart-plug-with-energy-monitoring-15a-smart
store_origin: SK
region: Slovakia
---

# 15A max current 100-day energy monitoring 2.4 GHz WiFi only SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack)

**Brand:** sonoff
**Price:** € 101.20
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Plug into smarter living — control, monitor, and save like a pro!

## Quick Answers

- **What is this?** SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) by sonoff
- **How much does it cost?** € 101.20 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/305348230-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

- • **Schedule & Save:** Set countdown, single, or repeat timers to automate your devices and slash energy bills.
- • **Share the Smart Life:** Easily share device control with family or colleagues for collaborative convenience.
- • **Seamless Smart Control:** Works flawlessly with Alexa, Google Home, and IFTTT for effortless voice and app commands.
- • **Power Up with Precision:** Supports up to 15 amps for heavy-duty appliances without breaking a sweat.
- • **Energy Insights at Your Fingertips:** Track real-time power, voltage, and current plus 100-day historical energy usage and cost data.

## Overview

The SONOFF S31 WiFi Smart Plug is a compact, ETL-certified smart outlet supporting up to 15 amps and 120V AC. It connects exclusively via 2.4 GHz WiFi and integrates with Alexa, Google Home, and IFTTT for voice and remote control. Featuring advanced energy monitoring, it provides real-time and 100-day historical data on power consumption and costs. Its scheduling and sharing capabilities empower users to optimize energy use and collaborate on smart home management, making it ideal for tech-savvy professionals seeking efficiency and control.

## Description

SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - desertcart.com

Review: Great unit for ESPHome - Love these! Easy to use and Compatible with Flashing over to ESPHome for Home assistant. I do wish it was a bit easier but if you do a lot of these can just make a jig to program. Power monitoring seems to be accurate checking with a Kilowatt The inside traces seem to be thick enough to handle the amperage it is rated at. Function great for my needs to monitor energy of devices and trigger automation and also be able to toggle on and off the device. Use with my Washer to tell when it is done since it can do 15 amps.
Review: Super Useful, Informative Product - I bought these smart plugs to make my office run more efficiently. Using these smart plugs, I can schedule my office equipment to turn on and turn off at certain times of the day so that during the closed hours, I am saving energy. For that purpose, these smart plugs, work flawlessly. In addition to being able to schedule on and off timing, they also show the power usage going through them. It’s a little unclear in the app (there are no units shown), but I believe that the numbers presented are in kilowatts. So, the plugs, via the app, show how many kilowatts the plug is being presented and it tracks that power Usage both real time as well as on a daily and monthly basis. I wanted to be able to see how much power my office equipment was using, and these smart switches provided the exact amount of detail that I needed. Finally, and it’s a small thing, but these smart switches fit height wise, two into a standard AC outlet. This allows me to put two of them into a single outlet. Some other smart switches that I have tried take up more space on the outlet preventing use of the second outlet thus wasting outlet space. So I was very happy that I was able to put two of these into a single outlet. Overall, I’m very happy with these smart plugs and would recommend them to anyone that was interested in having a smart plug that was both schedulable as well as provided real time in historical power usage information. T

## Features

- Note: The SONOFF S31 only works with 2.4GHZ WiFi, not 5GHZ WiFi at all, and not 2.4GHZ/5GHZ Dual Band WiFi. make sure your network has different sids for 2.4GHZ and 5GHZ networks, and the device will work properly.
- Monitor Energy Consumption: Keep track of real-time power, current and voltage of your appliances on App.and Measure your appliances’ power consumption for 100-day daily/monthly energy usage data and total electricity cost.
- Works with Alexa & Google Home,IFTTT Supporting: Link "eWeLink Smart Home" skill. You can directly ask desertcart Echo/Echo Dot/desertcart Tap to turn on/off your SONOFF devices.Link "eWeLink Smart Home" on Google Home app, start to voice control your SONOFF devices on Google Home.
- Smart Remote Control Plug: You can remotely/timely control ON/OFF any connected home appliance via APP eWeLink on your smart phone or tablet. No distance/time limitation.
- Set time schedules for the lights and home appliances: You can set countdown/single/repeat timers to auto-turn on/off the WiFi controlled outlet on App. One tap ON/OFF Energy Saving.
- Share control of devices to others: You can simply share control of your home appliances to others so that they can also turn on/off the devices remotely.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08X2944W7 |
| Actuator Type | Push Button |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #270,930 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #382 in Electrical Outlet Switches |
| Brand | SONOFF |
| Circuit Type | 1-way |
| Color | White |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Plug In |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | Remote |
| Controller Type | Amazon Alexa, Google Assistant, IFTTT |
| Current Rating | 15 Amps |
| Customer Reviews | 4.5 4.5 out of 5 stars (360) |
| Date First Available | February 20, 2021 |
| International Protection Rating | 50 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 13.1 ounces |
| Item dimensions L x W x H | 3 x 2 x 1.02 inches |
| Item model number | S31 |
| Manufacturer | SONOFF |
| Number of Items | 4 |
| Number of Positions | 1 |
| Operating Voltage | 120 Volts |
| Operation Mode | Off |
| Part Number | S31 |
| Plug Format | Type B |
| Product Dimensions | 3 x 2 x 1.02 inches |
| Size | S31 4-Pack |
| Terminal | Blade |
| Unit Count | 4.0 Count |
| Voltage | 120 Volts (AC) |
| Wattage | 1800 watts |

## Product Details

- **Brand:** SONOFF
- **Connector Type:** Plug In
- **Contact Type:** Normally Open
- **Current Rating:** 15 Amps
- **Item dimensions L x W x H:** 3 x 2 x 1.02 inches
- **Material:** Copper
- **Operating Voltage:** 120 Volts
- **Operation Mode:** Off
- **Switch Type:** Touch
- **Terminal:** Blade

## Images

![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - Image 1](https://m.media-amazon.com/images/I/318wfRm3FeL.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - Image 2](https://m.media-amazon.com/images/I/41QoAjCj+aL.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - Image 3](https://m.media-amazon.com/images/I/41lWdB7jKRL.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - Image 4](https://m.media-amazon.com/images/I/41maTaXj90L.jpg)
![SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home, IFTTT Supporting, 2.4 Ghz WiFi Only (4-Pack) - Image 5](https://m.media-amazon.com/images/I/41vx2PH+7AL.jpg)

## Questions & Answers

**Q: Will this smart plug work with 5G networks?**
A: Can't! The plug can only be used for 2.4G networks!

**Q: How to deal with an unavailable connection?**
A: First of all, check if the network is correct and working properly, if that doesn't work, you can reset the plug and reconnect the pairing, and feel free to tell us if you have any further questions.

**Q: Does the pairing method support zigbee in addition to WiFi?**
A: Zigbee pairing is not supported for now.

**Q: Can the energy consumption monitoring function record the power consumption at any time?**
A: Yes, it's also possible to view weekly and monthly power consumption to help you save energy better.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great unit for ESPHome
*by B***N on September 16, 2025*

Love these! Easy to use and Compatible with Flashing over to ESPHome for Home assistant. I do wish it was a bit easier but if you do a lot of these can just make a jig to program. Power monitoring seems to be accurate checking with a Kilowatt The inside traces seem to be thick enough to handle the amperage it is rated at. Function great for my needs to monitor energy of devices and trigger automation and also be able to toggle on and off the device. Use with my Washer to tell when it is done since it can do 15 amps.

### ⭐⭐⭐⭐⭐ Super Useful, Informative Product
*by T***N on January 26, 2026*

I bought these smart plugs to make my office run more efficiently. Using these smart plugs, I can schedule my office equipment to turn on and turn off at certain times of the day so that during the closed hours, I am saving energy. For that purpose, these smart plugs, work flawlessly. In addition to being able to schedule on and off timing, they also show the power usage going through them. It’s a little unclear in the app (there are no units shown), but I believe that the numbers presented are in kilowatts. So, the plugs, via the app, show how many kilowatts the plug is being presented and it tracks that power Usage both real time as well as on a daily and monthly basis. I wanted to be able to see how much power my office equipment was using, and these smart switches provided the exact amount of detail that I needed. Finally, and it’s a small thing, but these smart switches fit height wise, two into a standard AC outlet. This allows me to put two of them into a single outlet. Some other smart switches that I have tried take up more space on the outlet preventing use of the second outlet thus wasting outlet space. So I was very happy that I was able to put two of these into a single outlet. Overall, I’m very happy with these smart plugs and would recommend them to anyone that was interested in having a smart plug that was both schedulable as well as provided real time in historical power usage information. T

### ⭐⭐⭐⭐⭐ Integrates seamlessly with Home Assistant. No hub needed.
*by D***P on December 8, 2025*

This device integrates seamlessly with Home Assistant, making setup incredibly straightforward. One of the best features is that it requires no additional hub – it connects directly to your network, eliminating unnecessary complexity and extra hardware costs. This is exactly what I needed for my smart home setup. The direct integration means fewer points of failure, reduced latency, and a cleaner overall system. Configuration was simple, and the device was recognized immediately by Home Assistant without any complicated workarounds or custom integrations. If you're running Home Assistant and looking for a hub-free solution that just works, this is an excellent choice. It delivers reliable performance without the bloat of proprietary ecosystems or bridge devices.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-05*