YoLinkSmart Outdoor Temperature & Humidity Sensor, Hygrometer, Thermometer, 1000' Long Range, 2 Years Battery Life, Emails, Text/SMS, App Alerts, Alexa, IFTTT Integration. Hub Required!

Bought 11 months ago, and has worked flawlessly up until now. Manual well written with troubleshooting guide. Tried everything and could not get it to work. Reached out via email to customer service. Within 15 minutes got return email asking for the unit id. Replied back about an hour later. 10 minutes after that, customer service explained they are shipping out a new unit today. No fuss. This is what customer service is all about and SO REFRESHING to deal with a company that cares and replies so quickly. They have a great variety of sensors a few I have bought. App layout very user friendly. Bravo!

I've got lots of YoLink devices, including the water leak sensors, automatic water shut off, a temperature sensor for my pool, infrared remote controller, and more. The hardware and software is really good. Yes, you may think "why should I pay this much for a temperature sensor?" I learned the hard way. I wasted a lot of money on Govee ones with the worst battery life ever. Yes, I saved on the price up front but I have to replace the batteries every 2 or 3 months. And those ones aren't even connected to the internet! Instead, with YoLink, the batteries last for years and the devices are connected to the internet. If you want alerts for a specific temperature threshold you can do that easily, and no matter where in the world you are, as long as your phone has a signal, you'll get an alert. Great products and are priced fairly for what you get.In this picture you'll see the waterproof temp and humidity sensor. I have it hanging up in a spot outside my house, that doesn't get direct sun, or rain. The YoLink hub is necessary but you only need one of those for all your devices. That's the secret sauce and why the signal range is so good and the batteries last a long time, as they use "LoRa" protocol.

The YoLink hub and sensors work great! A strong solid connection with the hub is maintained by all sensors, and all sensor data is readily viewable in the app. So far, this temperature and humidity monitoring system is superior to anything else I've seen on the market.

So happy with this purchase. Our Sulcata tortoise lives out in his insulated dog house all winter and we have to keep him at 70 degrees. I now get alerts if his box dips below 60 degrees. Its awesome as it connects right to the base that plugs into your WIFI. The receiver has a built in Bluetooth that connects to the base. I downloaded the app, and can see what the temp in his box from anywhere.Totally worth the money. Super easy set up. I might buy another receiver for our dog kennel in the garage!

Good temperature range which is important in Phoenix. I'm somewhat disappointed in the accuracy. After measuring it against a calibrate thermometer, I find it is only accurate to + or - 5 degrees. But it is still good for relative temperature and will track a trend good enough for my use. The hub is very easy to set up and they have good customer support

The YoLink Temperature & Humidity sensor has really met my needs well, allowing me to monitor temperature outside and in my greenhouse. Their app does a great job displaying current and historical data. And so far I've been pleased by the support from the company.When I first set up my greenhouse, I got a Meross sensor because I've liked other Meross products, but very quickly I had issues with the sensor disconnecting from the base unit, so I ended up returning it. I wanted a product that was reliable, but one that didn't cost a hundred bucks. I hadn't heard about YoLink and wasn't sure about the brand, but it seemed like a decent choice. Having got this initial base/sensor package, I've found it very reliable and have expanded the number of sensors reporting back. In my opinion the long battery life of AA batteries is better that a solar/non-replaceable battery other brands use. I will likely buy other YoLink products in the future.

Device worked great for more than a year, but the cold winter of 2024-2025 took its toll. Thanks to a generous two-year warranty, they shipped a replacement promptly after they agreed that the unit died. I have several of their sensors monitoring my house since I like to travel, and they have saved a lot of money when my freezer lost power. The app sent me an alert that the temperature was rising, and I was able to get back and restore power before losing any food. The outdoor sensor was the only one to need replacement in several years.

We were out town for an extended time and our basement refrigerator/freezer quit… the freezer was full! The whole house smelled when we got home. I bought this kit plus 2 more sensors. We are out of town again and the garage freezer started getting too warm… above 32° F! The sensor and app warned me. My kids emptied it today! Saved us all that lost food and a stinky garage!!!!