1 Channel USB 5V 7-32V Tuya app WiFi Wireless Remote Dry Contact Smart Relay Switch Module,Works with Alexa

Took me less than 5 minutes to install. I had an old 12V DC wall wart to power it. Used to turn the Rinnai control-R wireless box on and off. Works perfectly! It's all I could ever ask for in a wireless relay switch!

The MHCOZY Smart WiFi Wireless Relay is probably one of the easiest devices to setup that I have seen. Relay switch works just fine. All good to report.

Used as a smart switch replacement for my HVAC fresh air damper timer. Replaces the Grasslin analog timer. I like it comes with an enclosure.App is easy to setup and link with Alexa. I have used a similar brand in the past that have died after a year of use. I need to wait and see the longevity of this brand.

This took all of 5 minutes to install in my fireplace, linked it through the Smart Life app to Alexa, and now I can turn on the fireplace very easily and remotely if needed.You will need an outlet under there but if you have a fan there must be power. You will need a 5v USB adapter too.Should have bought this years ago.I still have the fireplace hooked up to a thermostat too, you can use either.

In addition to the Android app it's also can accept 433 MHz radio remote. Everything works perfectly

I'm very familiar with diy electronics and AC and DC circuits, I've never had an issue with a circuit simply not working no matter what and have done wiring for homes, RVs, and trucks. I've wired in IR and blutooth controlled switches/relays many times. I tried adding this to control my RV ceiling lights. They run off a 12v dc circuit, and the light is 6W with a positive and negative terminal only. The unit received power from both the micro USB plug-in and the 12dc input (not simultaneously) and I could connect to my tuya app and turn it on and off, hearing a click and seeing the led indicator turn on/off, but no matter how I wired it- positive or negative on com, NO or NC circuit, didn't matter, none of the 4 possible wiring configurations worked with either power source connected. So I called Amazon and got a replacement unit which also had the exact same issues. I checked with voltmeter as well to see if it was sending any power, nothing. For now, the ceiling light has been reinstalled into the original circuit design and still functions normally. I understand all items mass produced occasionally have defects, so I wasn't bothered by the first one not working, but to have 2 in a row is concerning and disappointing.

I was looking for a devise to automate my fireplace and found this. All I had to do was add my transformer to the unit, connect it to the fireplace control and it work as I wanted! It connected to my wifi with no problem also. Totally recommend it!

Works great no issuesInstall it on my remote gate

Wanted this to close my garage door remotely. I realized after I received it that there was no feedback to indicate the position of the door. If you requested the door be closed you have no way of knowing if the door did in fact close.I returned this to order a device that could give me that feedback.

Equipo de gran versatilidad y de Instalación sencilla

Petit appareil qui me permet de commander une vanne motorisé sur les eaux usées de mon camping car avec mon téléphone en passant par mon routeur wifi. Plus besoin de descendre lors de la vidange tout est sur mon application Tuya ou Alexa. J’espère que ça va durer dans le temps.

Purchased to enable switching of power to cameras inside a boat which has a MiFi that it connects through - works flawlessly and can be scheduled via the Tuya Smart app and is very flexible in how you want it to operate. When it is on a red led lights up inside the unit that is not too bright but indicates its state of operation.

Works perfectly