WiFi Switch Compatible with Alexa/Apple Home/Google Home/Matter (Hub Required), Power-Measuring Relay Switch Module with Integrated Bluetooth Repeater and Dry Contact, 2.4 GHz, 16 A

I wired it in conjunction with one of my led momentary push buttons, 28vac I think. You just need the 120 hot and neutral on the right terminals, then the 2 far left terminals are switched. I don’t think it matters, just the 2 low voltage wires either side. I think you can have it wired into the ceiling garage door opener, but I had an electrical enclosure to use. Good luck on getting Alexa and Siri shortcut to work. Really had to dig deep and figure it out. I did not have to download Matter, even though Alexa wanted me to. I think I only set it up on the, new to me, Switchbot app. Then I was able to get Siri shortcut, then finally somehow got Alexa to recognize the bot. I set the momentary switch duration in the app to the lowest setting I found(1 sec). I can now tell Siri to open the garage, so relieved. All my big garage leds come on when I get home from the Alexa arrival routine, which messes up my garage door clicker reception from my truck is mostly why I went this route if you are wondering. Don’t let the picture fool you, it really is small, might seem bigger in the pic. Just hope this helps anyone going into it blind like I did. Thanks.

I bought this to extend the Bluetooth range between my SwitchBot hub and sensors. I do not use the switching function. As a Bluetooth extender, it works flawlessly. I like the flexibility to use a variety of power sources. I attached an old 24 volt passive POE (power over Ethernet) adapter so I could safely hang it on the wall and plug into any nearby outlet. The instructions list several options for power inputs (100-240V AC; 12 or 24-48V DC). Wiring and setup were simple and its tiny size allows it to go just about anywhere. I'm not sure I would pay full list price (since I'm not using the full functionality), but significant discounts are frequently available. SwitchBot devices have been very reliable for me.

This should be a 5 star product but their decision to use 4 point type for the instructions makes the manual uselesss. Functionally it has been flawless. It was relatively easy to set up in the app and Alexa automatically added it to its device functions. I quickly added 4 more to my system for a total of 8. They activate/automate 12V lights in the RV, the remote switch on a gate opener, exhaust fans and low voltage lights. So far they have all operated exactly as they should. The less than 2"x3" instruction sheets are just silly.

I used this to control a device powered by 12V DC. Works perfectly and integrates with my smart home.

Perfect for a lot of applications, a bit complicated setup for HomeKit.

The good news is SwitchBot reached out and gave me a full refund. Excellent customer service I must say. The bad news is that as of FW V2.1, the SwitchBot WiFi Relay is incompatible with WPA3-Personal-Transition Mode (i.e. WPA3+WPA2), and they don’t seem to have any plans on fixing the bug. I had to downgrade my router security to WPA3-Personal-Compatibility mode for it to work. While I get it that an old cheap legacy device might not support WPA3, it is unacceptable that it does not work with routers that support both WPA2 and WPA3 in Transition mode. Maybe a future firmware update can fix this, but I won't be holding my breath and until then, I will be looking elsewhere (e.g. the Aqara T2). It also doesn't help that the device isn't native Matter and the initial setup is overly complicated and needs to be online through Chinese servers, setting up a hub, ...

Easy to initiate into the Switchbot system. The contacts are dry. (Isolated) which greatly enhances the usefulness. Can be powered from just about any voltage. Contacts are rated at 16 amps but getting any conductor larger than 16 gauge in that tiny connection is a loser. Bluetooth lag time on activation could be an issue if you have a lot of other devices on line.

There are already well established home automation protocols that have been in use for years, but this company decided to not pay any of that attention, and lead potential customers into thinking this will work fine with a SmartThings Zigbee hub, which it will not. So, just to humor things and verify it's even working, I add the switch to my SwitchBot (I use their little temp / humidity sensors) app just to see if I can live with switching them that way. All installed fine, but one of the switches were defective; 120VAC in just fine, the relay in the switch clicks as it is supposed to, but no 120V output whatsoever. Boxed 'em up and sent them back. There's another 1/2 hour of my life I'll never get back due to someone else's negligence in making a defective, terrible product.