Ewelink WiFi Wireless Smart Relay Module USB DC 5v/12v/24v/48v 2 Channel Switch for Garage Door, Rolling Shutter Door, Electric Curtain

This works to automate your household electronics that can be switched on or off. It has the ability to act as a momentary switch like a push button for a garage door or can be use as a latching switch like a wall switch. This is controlled in the free app (eWeLink) you must download and use to set it up. Con: this is a Chinese app. So who knows about your data. I didn’t care too much but others might. This is compatible with Alexa voice commands and you can schedule this to trigger on/off which is why I bought it for my Liftmaster gate. It Works great!

I used one of these to control the PCB of a whole house attic fan and some outdoor lighting. I used another to convert my garage door opener and additional lights. Works well after pairing the app with google home. (As long as you don't mind the mandatory data sharing with a small island in Asia) The new Matter devices will be nice, eliminating the need for two apps. But for now....The wifi signal is received well even in the attic but these are 2.4 ghz and that penetrates walls and ceilings well. I had to turn off 5 ghz in my xfinity router to get these set up. (I actually just gave the 5ghz wifi a different name for the few minutes it took to set these up on the 2.4 then changed it back so both matched. My router had this capability.) Its been a couple of months now and all is working well.

Perfect for what I needed. Replaced a $145 relay that operated through a sim card that I was paying a monthly fee for. Was shocked by how small this was. If you have 2.4G wifi access where you'll be using this, it's the only way to go. Used it to activate a solenoid for the drop door on a hog trap. Used the 2nd channel to activate the deer feeder. Can activate either one from anywhere I have phone service. Can think of lots of stuff this little gem could be used for. Instructions could be a little clearer but if you're even using this thing, you're probably tech savvy enough to figure it out.

It has only missed reconnection once. Very simple to work and use.

Excelente producto, me sirvió para automatizar mi portón del garaje con actuadores BFT.

Like the title says, worked great for about 6 months then started drawing large amounts of power. So much so that it was killing the battery on the gate it was attached to. Worked great until it didn’t.

It has more than 800 hours of continuous work and continues to work perfectly. It has a very good price-quality ratio.

The 2 units I ordered started out working just fine. One stopped working after about a month. The blue led light barely flickered on the one that stopped. The unit is shorted out, checked with a volt meter. The other unit was used with the same power supply that the failed unit was using and works just fine. Needless to say, the product doesn't seem to be a very robust design. I tried to send it back but Amazon doesn't seem to have that option. Getting product support as far as a replacement doesn't seem to be supported