Let me start by saying this little gadget has potential, but boy does it have quirks. I've been using the MHCOZY eWeLink Smart Switch for my attic fan control, and it's been a rollercoaster of emotions.

The good stuff first: The temperature monitoring works like a charm. I set mine to trigger at 105°F (40.5°C) and turn off at 90°F (32°C), just like the manual suggests. The real-time monitoring through the eWeLink app is surprisingly accurate - I tested it against my digital thermometer and it was spot on.

Installation was... interesting. The pamphlet might as well be hieroglyphics. After struggling for an hour, I discovered the magic trick: use Compatible Pairing mode. Pro tip: Set this up on your kitchen table first before installing in your attic - you'll thank me later.

The Alexa integration is basic but functional. You can turn it on/off and check temperature, but don't expect advanced voice controls. The app itself is decent once you get past the mandatory registration (yes, they make you sign up or it stops working).

Now for the headaches: The Fahrenheit/Celsius toggle has a mind of its own - keeps resetting to Celsius no matter what I do. And that temperature probe cable? At 3 feet, it's comically short for many applications (I ended up buying a 25ft extension).

Durability seems hit or miss based on reviews - mine's holding up after 3 months in a hot attic, but others report failures within weeks. The lack of included mounting screws feels cheap at this price point.

Final verdict? If you're tech-savvy and patient, this can be a budget-friendly smart switch solution. But if you want plug-and-play simplicity, look elsewhere. It gets the job done... after jumping through several hoops first.