SONOFF

SONOFF S31 Smart Plug with Energy Monitoring WiFi Outlet 15A Remote Control That Work Alexa Google Home IFTTT

446+ bought in the past month

$19.99$38.99

About this item

  • APP Remote Control: SONOFF Smart Plug can help you easily control your home appliances anytime and anywhere through the eWeLink APP.
  • Energy Consumption Monitoring: You can see the power and power consumption of electrical appliances in real time, and you can get the electricity consumption in the past 100 days.
  • Voice Control: Smart Plugs taht work with Amazon Alexa and Google Home, so you can enjoy controlling your smart home devices with voice commands.
  • Schedule & Group Control: You can create custom schedules to automatically turn on/off your electronic devices, saving energy and money. And you can set up a group for all your smart plugs and control them with just one tap.
  • Easy set up and Use: Download the eWeLink APP, connect to 2.4GHz Wi-Fi, you can successfully pair the smart plug, and share it with family and friends to enjoy smart life together.
$19.99
Was $38.99Save $19.00

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Product details

BrandSONOFF
ColorWhite
MaterialPlastic
Connector TypePlug in
Number Of Poles3

Technical specifications

no_of_wires3
plug_formatType B
specification_metEtl
amperage15 Amps
manufacturerSONOFF
product_dimensions3 x 1.57 x 1.3 inches
item_weight6.4 ounces
item_model_numberTPB-US
date_first_availableJune 30, 2023
best_sellers_rank#170,642 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #446 in Electric Plugs

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Customer reviews

4.359 ratings

Customers say

Customers find the smart plug works well, with one mentioning it reacts instantly, and they consider it one of the best switches available.

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They work

John Markleβ€”November 6, 2025

These are the best switches I have ever had for the money. I used to have WeMo and they don’t work too good anymore so I tried these but my first one over three years ago and still working perfect Read more

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Great for Tasmota/Esphome

Some personβ€”May 25, 2025

These are the ones you want if you want to reflash them to tasmota or esphome. I've got a batch of them and they all work fine after reflashing. Will probably buy more. It's also great as simply an energy meter to test things, IMO FAR better than a Killawatt, as it can log and it's not something you either have to watch or remember. Read more

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Hacker's delight

Sompomβ€”November 4, 2023

These are the best smart switches out there. Why? They use an ESP32-8266 processor and they have easily-accessed programming leads. Sure, you could use them directly out-of-the-box. They're probably good for that. But if you're really into smart home, why not get your hands dirty and re-flash them? There are plenty of guides online. Then you can run them directly over your home network. No more security problems since they're not connecting over the Internet. No more privacy problems since you control the device. Also, they react instantaneously, compared to the 1-2 seconds my other, Internet-connected smart switches take to react. Anyway, what do you have to lose? $8? Consider it a learning experience! And SONOFF, this review is to remind you why your customers love you. As far as I'm concerned, I'd be even happier if you mailed these products with externally-exposed tx/rx pins so I didn't even have to open the case! Read more

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No warning of cutting access

Meagan Mertsonβ€”January 15, 2024

There's a trial period? Don't buy the outlet plugs. I checked on my plants and they were dying, wilted, bent stem, leaves turned yellow. I have no clue how long the light was out because there was no warning I couldn't use the plug timer anymore. Scam. Ruined plants I've had kept alive for years. All the time and energy lost because of it's stupid eWelink app. So mad. Read more

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Best SmartPlug (after modifications)

Jeff H.β€”May 2, 2025

I have a dozen of these and use them to control dumb devices and energy monitoring. They're great for the price. I flash them with Tasmota or ESPHome firmware and they're flawless. It's a little extra work, but totally worth it. Highly recommended! Read more

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Buen resultado

Manuel Rubioβ€”August 17, 2025

Funcionan perfectos, pero son muy complicados de configurar la primera vez. Read more

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Very nice product

Customerβ€”May 20, 2025

I have only had them for a week or so but they have worked well and give me a lot of power info at your finger tips. I like them. Read more

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Home Assistant

Garyβ€”April 12, 2025

Though they require disassembly and programming cables to program, the Sonoff S31's remain my choice of outlets for integration into Home Assistant using ESPhome. Read more

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