Let me start by saying the Tuya WiFi Door Sensor is a budget-friendly alternative to pricier options like Ring. The setup is a breeze—no tools needed, just peel-and-stick installation. I slapped mine on my fridge (yes, fridge!) to combat my forgetfulness, and it worked like a charm. The app notifications are instant, and I love that it works with Alexa/Google Home for voice queries—though Alexa sometimes hilariously reports "Battery is 100%" instead of door status.

BUT... consistency is an issue. While some sensors work flawlessly (like my fridge hero), others ghosted me—no alerts despite strong WiFi. One unit died completely after 2 days, though the seller replaced it shockingly fast (kudos!). The magnet alignment is finicky; if your door has thick trim, prepare for frustration. Also, the "low battery" warning? Mine cried wolf for weeks before actually dying.

For casual use (pet doors, cabinets), it’s decent. But for critical security? Nah. My pro tip: Use neodymium magnets for tight spaces (the included small box is just a magnet anyway). At this price point, it’s worth experimenting—just buy from Gaoducash for reliable customer service.