AqaraDual Relay Module T2,Matter Over Bridge,Requires Aqara Zigbee 3.0 HUB, Dry Contact Mode for Garage Doors and Boilers, Light Switch & Roller Shade Switch, Supports Homekit and Alexa

I purchased this Aqara Dual Relay Module T2 with Zigbee for its ability to control a ceiling fan with a light, turning on or off the fan or light independently. It does a great job with that, and it does much more, as well. You can configure it as a dry relay, pulse or switch, for garage doors, gates, and such things. It comes with a stripped and tinned patch wire to connect the load to the two switches for a powered switch, or simply don’t use the patch wire for dry connections. I use the Samsung Smartthings app for most of my smart devices. Initially I had significant difficulty because if I paired the switch to my Smartthings hub, it appeared (and worked) as only a single relay switch. If I connected it to an Aqara hub, which Aqara says is required, I could not make it work with SmartThings. I don’t want two different platforms, so I scoured the Internet and found a third party driver that I could download to my SmartThings hub. Once I did that, this Aqara switch detected in SmartThings with both relays. I was off to the races, with no need for the Aqara hub or its software! This is a very versatile smart switch, and I’ve since purchased more of them.

Huge. Relative to most compact in box switches this one is near 2x the size of others I've used before.On the other hand only 1 of those were dual relay but still 1/2 the size easily fitting behind most switch or outlet types.For USA exterior usage to control 1 duplex outlet (each receptacle on a relay) I had to install a dual gang pvc surface mount box with wet service in use cover box just to fit this giant in 1 gang space.It's too tall wide & deep to fit along side or behind any outlet...might fit very snug to a simple single dtsp switch 🤷‍♂️.If you were to install it in a deep plastic single gang new or existing construction box you may be able to get it to fit, but I'd recommend using stranded thhn wire over solid romex for the terminations between device and fixture.It looks and feels substantial so they get kudos there. In the US we really don't use din rails all that much but I certainly have had cases where it could come in handy for other purposes.Functionally I like it. Being it's zigbee saves some wifi bandwidth in a residence with 200 plus ip devices. The switch or sensor connections give it additional flexibility for usage. The power tracking, scenes & automation abiliies work as expected.Also appreciate substantial lugs which can accept 12 gauge wiring and sufficiently torque it down without fear of stripping the threads.It would be nice if set up (schematics) were included in the print manual since the aqara documentation for it on their website is near impossible to locate.Still feel it's a skoche overpriced for what it is. But it definitely tries to make up for that by doing it's job well while being we constructed. If they could miniaturize this more perhaps by going w SSR or triacs over mechanical relays it would be a real winner.

It’s good, but I returned it because I don’t want to add one more hub

Hope they make this on a bigger format like 5 switches o relays. Want to use this every where

The first night I tried to add the T2 it was hard-wired in a ceiling fan canopy. It failed to be added to hub twice. I removed it and put the wiring all back. The next day, I took an old extension cord and wired the Live and Neutral directly to the T2 as a matter of convenience, this time much closer to the hub, but it failed again. Since I was sitting at the table and not standing on a ladder with my hands full, I saw the app had a message suggesting checking 2-4 things, including that the hub was on the latest firmware. It wasn’t. After the update, the T2 was able to be added, no problem.I’m using it to allowed remote, independent control of the light and fan in an otherwise dumb ceiling fan. Works both in the app and also using the double rocker switch WITH NEUTRAL for a physical remote, having programmed the buttons to operate the T2

I've been using this for holiday decorations for about a month now and so far it has worked very reliably. But there is minimal documentation, you can't set a default power on state and it keeps reporting the incorrect output states when off (cycles back and forth between reporting as on and off, sometimes as frequently as every few minutes). I'm using a ConBee II/deCONZ so it might be better/worse on different hardware but this is definitely a bit glitchier than the other Aqara devices I have. The build quality is very good and it's fairly compact but might still be a bit big if you were trying to fit it into a electrical box behind an existing switch.

gives me two separately controllable relays with either wet or dry contact mode. easy to wire up if you have any electrical experience. use it to control a light and exhaust fan that was wired together in my bathroom.

It is extremely painful to connect this to the hub. And even after you get a successful connection, it disappears after a few seconds.Update after a few days: I was finally able to connect it though I can’t tell why it eventually worked. You do have to press the reset button once for 5s, then watch the hub light. Then do it again. It only connects on the second try.Once it connected and eventually appeared in HomeKit, it has been functioning as expected.