Shelly Plus 2PM | WiFi & Bluetooth 2 Channels Smart Relay Switch with Power Metering | Home Automation | Roller Shutters | Remote Control | Alexa & Google Home | iOS Android App

I use this behind a dual three-way switch. In the space of a single decorator switch I have a twin three-way switch, so I can control a light/fan combo from both ends of a room. Trying to find something to convert the switches to a smart switch was an exercise in frustration until I found this little device.It has inputs for live/neutral/switch 1/switch 2, and two outputs. It's simple enough in principle to wire it but it does leave back boxes a bit cluttered. I had to rewire my switch to put it into a deeper back box so I could fit this into the box as well.The two outputs are totally independent of each other so you can use it for a light/fan combination, to extend/retract something motor driven (perhaps something to retract an awning if high wind is predicted, and then extend it when the high wind passes), or you could use it for two totally unrelated things that happen to be in the same back box.Shelly allows a few configurations of how the relay works, relating to switch positions and relay states so you can probably find something that will work for the way you want things to operate.As a bonus this also monitors the power usage on both circuits independently of each other. It can switch two circuits of up to 10A, with a total maximum of 16A. That's enough for most things you'll find in a house but won't be enough if you want to switch space heaters or hair dryers etc. If you want to switch space heaters I believe their regular 1PM will switch up to 16A on a single loop.Setup is simple once it's installed, the Shelly app finds them automatically and makes installing them about as easy as you could possibly expect. Then you can control them from the Shelly app, or link to Google Home (and probably others too, but I can't comment on those).Being a smart device you can turn them on/off manually, or set them to respond to other events. So you can have a porch light that comes on 15 minutes after sunset and turns off at midnight, or a setup that responds to saying "Goodnight Google" by turning off all the lights in the house, or pretty much anything you can think of.I've got three of these in my house now as well as a couple of the regular 1PM units, and expect to have many more by the time I'm finished.

So perfect and reliable! I am finding uses for these all over the house to make life easier for my family.

I had an idea for a contraption that opened and closed, and while I knew it could be easy to program it with a DC motor, I really just wanted it to plug into a wall socket. Figured if motorized window shades could be plugged into the wall, something out there already existed for this purpose. Poked around and found this. It is mostly made for motorized shades and garage doors and similar things, but it works for my application great.The brand is more popular in Europe but is gaining ground here in the US. It runs on an app that you can initially set up on bluetooth until you get it connected to your network. This is important because a lot of these "smart home" type relays/devices and such only initially connect on lower band wifi that many internet providers don't even use anymore, or if they do you would have to walk down the street to be far enough away to connect to it. Setting it up on the app as a result was super easy.I went on the Shelly reddits and was able to figure out how to wire it, use features like programming it on a schedule, making it automatically stop if it detects an obstruction, and limit how long it runs whenever it is turned on. There are other sensors you can connect to it (temperature, moisture, etc) that you can use to turn it on/off too. And it can actually tell you how much energy it uses to run whatever device you hook it up to - I have not seen that in a smart home type device before unless it was part of some big prebuilt smart home system. This lets you build your own diy smart home system easily.Very impressed. The only "issue" I had was where you input wires. They are small, like only18 guage or something, and the amount of exposed wire you can insert is shorter than what I am used to. But its not meant for high loads so that's fine.

I'm a fan of Shelly's line of smart switches. They use widely supported Espressif ESP32 microcontrollers without anti-features like blown e-fuses, and most of them (with the notable exception of the mini line) include pin headers, so if the Shelly firmware doesn't suit you then you can easily replace it with ESPHome, Tasmota, or whatever you like.I wish that more of their products supported DC power and had a dry-contact option like the Shelly Plus 1. Always running the load voltage through the switch is an anachronism: we just need one bit of information, there is no reason that we always need to use 110-220 V in order to get it.

I somehow got into some unresponsive setup, and was about to give up. But then I read that a 20 second hold on the reset button would work--and it did!! The rest of the setup through the web page was easy. And it WORKS!!

Used this to make my garage door opener smart. Works worth Google home.

This unit really extends the product line to add great features! Home Assistant recognizes them as well! Love this product line.

this is controlling an outdoor roller/sun shade. So far working great with HomeKit. Very easy to install, small package fits well in my existing single gang box.