SONOFF S31 WiFi Smart Plug with Energy Monitoring, 15A Smart Outlet Socket ETL Certified, Work with Alexa & Google Home Assistant, IFTTT Supporting, 2.4 Ghz WiFi Only (2-Pack)

Easy to setup and easy to use.

I have found the Sonoff plugs to have a better range and reliability of other plugs I have purchased. The company allows for easy hacking via circuit board pads and the use of the ESP8285 chip. Even without flashing your own code the setup is fast and it connects with Alexa without problems using the eWeLink app.

Best thing about this device is the ability to reflash with Tasmota firmware which then works with both HomeAssistant and MQTT based home control and automation systems. You can utilize one system for power monitoring and the other for control once the unit has been flashed. Very good support by the community for using the part.

I bought this as an inexpensive way to meter how much amperage my computer desk pulled at peak load, as well as other things like AC units, coffee machines, etc. it faithfully shows amps and watts of the load. The problem is it’s a “smart” switch which you can toggle on or off, or set automated “scenes”. In addition it has “inching” auto triggers. Even with nothing defined for the automated toggles the logs still show “device triggered” or “scene triggered” at seeming random intervals, which is really inconvenient if you’re using it at the time. Latest firmware did not fix this behavior. I’d recommend only using for short duration active metering and then removing from your path.

Adding new devices can be daunting at first, but once you get the hang of it, it becomes a breeze. The ability to monitor appliance energy consumption is a definite plus, and being able to schedule the ON/OFF times is only second to being able to remotely power on, or turn off anything plugged into the unit.

I cracked this baby open as soon as I received it and flashed Tasmota onto it without any issues. Works great!

I do like this device especially since its so much cheaper than other devices similar to it. But you do pay for that in some ways because it doesnt have a fast rate of updating. So it seems to freeze occasionally for 10 to 15 seconds and then other times it will report every 5 or so seconds. For my purposes it does just what I needed to.

I use for dehumidifier, Steamer, Online media box. I use for coffee maker to start 8 am. Surprised it made coffee 12pm lunch time. Too many ads in the app. For 4$ each. And Wi-Fi. CAnt beat the price but not perfect.

My wifi auto switches your devices between 2.4GHz and 5GHz, so I cant use this switch unless I dedicate a an old phone. I put my phone on the 2.4GHz band to install it and it worked. However, I cant leave my phone on that band. When I switched back, I couldnt connect to the device. I have other smart devices that require 2.4GHz signal in the house but not on your phone. Bad software design.

Easy to pair and get it working. Alexa, lights on, Alexa lights off! This plug is very handy! I am going to use it for my Christmas tree when its time! Looking forward to not having to struggle with the outlet each night.