YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range (-22 to 158 Degree) for Freezer, Fridge, Green House, Pet Cage, Smartphone Alerts - Hub Required

I stumbled upon YoLink while searching on the internet for separate smart temperature and smart humidity sensors for several automation projects in my home, so I was excited to find they have a temperature/humidity sensor (in a single unit). As an electronics and home automation enthusiast, I have since been adding them all over my home. Here are a couple pictures, and here are some applications Ive tried out or will be implementing in my home: Automating control of exhaust fan in bathroom - turn on fan before the room steams up during a shower/bath Keeping an eye on a fridge on its last leg Monitoring the temp and humidity of a bearded dragon tank. Both are very important. I also have automations to turn the heat lamp on if it gets too cold. My daughter, its her pet, has the app installed and receives notifications of problems with the temp or humidity. I also have a general tank light on a smart plug, on a schedule. I am going to be installing a whole house fan soon, and I want to use these, in most rooms of the house, to slow or turn off the fan, as well as to control ceiling fans in the bedrooms (to turn them down or off as it starts to get too cold at night, with the WHF running all night, otherwise). The ceiling fans are on Lutron Caseta switches, but the Alexa and IFTTT.com integration allows for automations that include multiple brands. Very flexible! I can see additional uses for this, keeping an eye on a wine cellar, a leaky basement (in conjunction with their Water Sensor), an unoccupied property or building or room subject to damage from freezing, extreme heat or humidity (and mold and other resulting issues). Thats a great price, too. Which is good, because I plan to get more of them!

Easily monitor temperature when not home, alert if it exceeds limits. Very easy to set up with the app.

I have 2 sensors that track temperature and humidity. One is in our garage (tropical climate) and the other is in our refrigerator. I rely on the sensors when I am off premises. They are accurate and reliable. They have a strong connection to the WiFi despite one sensor being quite far from the hub (100+ feet). I have owned one over a year and the battery is holding up fine. Highly recommended product.

These temp/humidity sensors took the place of my old Acurite hydrometers/thermometers. They were more accurate and now I have alerting through Yolink. Absolutely no issues with connection or distance. Have one in my gun safe too and the signal is very strong.

Transmits from my shop building about 120 ft away from house and alerts me if temperature is getting close to freezing.

I use several YoLink sensors to monitor for leaks and these for monitoring our refrigerators while we are traveling. I can check the condition of things around the house from anywhere on my phone. Gives me piece of mind along with my security cameras.

These work great! Even inside my fridge and freezer! The display is big enough to se, and they work in the cold temps! Great to know when one of the kids leaves the basement fridge open!!!

I have over 20 YoLink devices and have been using them for years. They extremely reliable and very reasonably priced. The set up is very easy and their customer service is available and outstanding. Bottom Line: GREAT PRODUCTS AND GREAT CUSTOMER SERVICE

The base unit and temp/humidity sensor were quick and easy to set-up . The creation of automations is not easy. The difference between an alarm and alert is unknown to me still. This needs to be explained better and the automations need to be much easier to understand and set-up.

I got 2 of these and 1, as you can see, has a bad display. Its not worth the effort to send it back so I hope they improve their quality control/packaging. Not the only yolink issue Ive had either. UPDATE: I made contact with YoLink and they made it right. They sent me a replacement, at no cost, without having to return the bad one. While they may be experiencing some growing pains they do stand behind their products which I appreciate. I do wish the history could be deleted and that reporting times could be adjusted but overall its a good sensor and company.