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)

This has been our favorite smart plug for quite some time. And now being UL listed just edges it up a little higher. Two of the plugs fit fine in the same socket without forcing anything. If you want to manually flash them with Tasmota or some other open source firmware, the WiFi PCB on them is the same as it was previously so all the profiles/templates will work just fine. The product is still held together with screws and no glue so it goes back together super easy.

Estos enchufes solo funcionan a máximo 2 metros del router. Más allá no tomarán señal de wifi. Tengo unos más baratos y toman señal hasta 50 metros, una decepción los eschufes sonoff, literalmente solo funcionan al lado del router.

I needed a method to measure electricity usage on my solar water heater backflush system. It has 1 small pump that moves the heated fluid from the rooftop solar panel to a heat exchanger tank, then another pump draws cold water from the bottom of water tank thru the heat exchanger and dumps the heated water into the top of my tank. The pumps run only when the temperature sensor on the roof senses the temp is warmer than the cold water in the bottom of my tank, so it happens sporadically as the weather changes. This device lets you put in the cost per kWh so it shows the actually cost of energy. Works perfectly for me. Also, these pumps only use about $5 of electricity per month.

The appeal to this model is the ability to open them and hack them - great for automation. They didnt play nice with my router. 2 of the 4 kept going offline and I had to reset them to get them back.

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.

After thunderstorm power outage, the products turns off on its own and doesn’t turn back on. Scheduling on the app doesn’t quite work all the time.hopefully Alexa can take over this. Wouldn’t recommend to put on always need to tbe on device.

These plug are a nice size and appearance. They come part well if you want to flash it. Flashing it is super easy with a decent jig. Be warned the breakout test pads lift easy if you try to solder directly to the pads. It was faster to print a jig then it was to fix it after the rx pad tore off.

Funcionaba muy bien y fácil de instalar

***Not Tasmota compatible. This was my own mistake.*** These probably work perfectly in the advertised cloud interface, and integrating with Alexa, although I wont be using them in that capacity. I mistakenly purchased these to flash with the Tasmota firmware, as Im trying to make my own, locally-controlled smarthome environment. I was unaware that this new model is not based on the ESP8266 like previous versions were, but instead they are built on the BL602 chip. I found some talk of a similar custom firmware for BL602 IoT devices and I will be attempting to use it, but if you want to flash custom firmware onto a smart-plug, just get the older model and avoid this headache. These are nearly impossible (and probably dangerous) to disassemble, and the community around this chip is not nearly as large or well-documented as the ESP community is.

Excelente compra, la configuración con la app eWelink se debe realizar primero via bluetooth y luego si enlazar al wifi 2.4Ghz. A través de ésta app se puede visualizar el consumo real de electricidad del aparato conectado. Enchufes muy estables, espero tengan la durabilidad adecuada