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Perfect for controlling four different devices even if they work at different voltages. You can control both a washing machine and the coffee machine from your mobile and not only turn on and off at the moment, you can also program on and off at different times depending on the day of the week.
The EACHEN ST-DC4 WiFi 4-way Relay Module came in standard BG plastic bag. Inside the bag is a box and inside the box is the relay board in its own zip lock back and a manual. Inside the zip lock bag the relay board is shown with onboard WiFi module, control circuitry, power connections, relays and relay input and output connections. There was no damage during transport and the board is well laid out and put together. So far so good and am looking forward to using it to control lighting in my workshop via the network.
very good product, very fast shipping...
Good product works well and eazy to setup.
This switch came fine. He works from both ewlink and Google home. Ewlink sets the switching time to 3600 seconds, on / off, on one at a time or switches all at once. Wireless switch range 10m. Google home turning it on and off at once or turning it on one at a time. I rate the excellent .
This Product worked like a charm for what I intend to use it for.😊 A offgrid Greenhouse and Automatic watering from a rain barrel and a Big 12V power bank with Solarpanel to control water pumps and a old mobilephone for a wifi hotspot.
arrived with intact packaging, to check the operation.
Use PSF-B chip ESP8285 (ESP8266+1MByte). Detail photos here. https://itead.cc/diy-kits-guides/psf-b04-application-guide/
It's a simple setup. I hope it can be used in the long term
They came in perfect, I ran the test on one of them, and it worked perfectly with remote control and connection to Alexa.