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)

These are easy to use. As Im getting older, I love telling Alexa to do stuff and she does it. Obeys better than my kids did, lol.

I first bought SwitchBot smart plugs thinking they would work with the Core SwitchBot integration with Home-Assistant, extremely disappointed in not only the broken integration, but also the terms of service from a company that has had a lot of recent YouTube praise. Unfortunately, it just shows the known ignorance and total abandonment of values in the name of convenience... Enter HACS and Sonoff; While Sonoff is also doing some data mining it is possible to run the S31 Smart Plugs completely local without the app or the cloud using HACS on Home-Assistant with no fooling with jumpers or fussing with flashing. Several recent HA forum posts and YouTube videos cover the procedure, just look for the most current so you can follow along more easily since the recent changes. Also, Stay away from the S40 if you use Home-Assistant. S31 is the way to go. Deducted a star for the shady terms of service that are getting all too common with IoT products. Otherwise, it would be 5 stars.

My intended goal for purchasing a dozen of these ugs was to integrate them with Home Assistant. I was able to successfully integrate them without too much fuss. The plugs work as designed and advertised. Additionally, I am able to either use the eWeLink app to see the each plugs overall power usage and control each plug. I plan on flashing these with ESPHome firmware so I reduce the need to rely on the Sonoff cloud. These plugs do have a LAN Mode option which enables them to reduce the need for the cloud, which I really liked. Overall, plugs are a 9/10 on my rating.

I used them for a week with eWelink, and after two days they no longer reported power consumption quickly, or at all. I tried flashing them with ESPHome to test if they were bad and nope, they were perfect, and i was able to read power consumption super fast (down to 0.2s) and accurately every time. If you are considering buying them, go ahead, they are excellent if you flash them with Tasmota or ESPHome. Do not buy the S40/S40 Lite if you plan on flashing them (Very hard to open and uses the BL602 chip, that isnt supported by literally anything). And finally, remember the S31 Lite DOES NOT have power monitoring

Works great right out of the box. Using the Ewelink software, you are presented with all the parameters and easily connects to Alexa. Just change the name during the configuration to prevent Alexa from getting her tung tied up in a knot. The only downside is that unlike other Sonoff boards, the serial connection points on the board does not have through hole pads. Several flashers have damaged the pads trying to hook up the connections for flashing alternative software. Very good value for money

Flash these switches with the OpenSource Tasmota firmware to unlock the full potential of these switches. With Tasmota, there is no cloud dependency, no phoning home, no privacy risk. You can use this switch as a standalone device by accessing the Tasmota web page. Alternatively, Tasmota on this switch provides full integration with MQTT for use with HomeAssistant or OpenHab. I have five of those switches with Tasmota installed and they are bulletproof. The remote control of the switch is great, but the real-time power monitoring is just awesome. I use these switches to monitor amperage and wattage draw of 3D printers. Plus, these are great for any hardware you wish to remote switch.

I have one I use in conjuction with a motion detector to turn a light on when I enter my bedroom and it works flawlessly. As at the time I did not have a zigbee gateway, I bought the wiwfi version. I have no complaints at all.

I used tiny spring clips on a USB cable to connect to the board inside and flash Tasmota. Worked great! Unlike the KMC 30153 where they changed the underlying SOC chip (so you never know what youre getting), these have real Espressif 8266 chips in them.

Got this to monitor the flow of electricity and to be able to reset my rig remotely. The power draw through this is not consistent and would cause my rig to reset every several hours. The wifi function and app worked well and it did monitor power usage but it was pretty basic.

I used with Tasmota to connect to Home Assistant. It adds a lot of other capabilities. Good even for just monitoring the power.