YoLink Smart X3 Version Outdoor Temperature Data Logger with Probe, Thermometer, 1/4 Mile Range, 5+ Years Battery Life, Emails, Text, App Alerts, Alexa, IFTTT. Pool, Hot Tub, Fish Tank. Hub Required!

My family grows cranberries, and during the spring, we need to know the air temperature on the bogs so we know when there is a frost. We protect the budding vines by running our sprinkler systems when the temperature drops below 35 degrees. Previously, we would go to our pump houses and check the temperature gauge there, usually in the middle of the night. We have six, and they are spread out. We bought one of these YoLinks to test how well they work. We placed the sensor out in the middle of one of the bogs (Just an FYI, cranberries do NOT grow in water) a good distance from the house, and it works great. It reads the same temperature that the sensor that controls our sprinklers reads, and it is great to be able to open the app and see what the temperature is. We will be purchasing more for the other bogs.

Has been working flawlessly for over a year. Highly recommend this produce. I use it to monitor my water line temperature from my cistern tank to house and have alarms if the temperature drops to low and control my heat tape. Great product.

I needed something to monitor the glycol temperature and my boiler system. This is a very easy set up easy to use app and it works as well as I had expected. You just have to keep in mind in order for the battery to last as long as it does, it does not give you Constant real time temperature readings. It just waits for fluctuations before Checking. You can set it to monitor every five minutes 10 minutes half hour pretty much whatever you would like but if the temperature is a 180° for a half an hour, it will not report a change because it didn’t change. That’s how it saves battery Life Other than that it is a fantastic product.

This is probably the single best purchase I've made for my pool. Does exactly what it is supposed to do, accurate, easily connects and syncs with wifi/app, and gives me data trends which I love. Phenomenal product, I would repurchase 10 times over but the beautiful thing I don't have to!! Battery life is still going strong 2 years in! Couldn't be happier.

I purchased this about 18 months ago to monitor water temperature of our (unheated) pool and it's worked flawlessly. The app is basic, but easy to setup and configure notifications. The original battery still shows 75% capacity after 18 months of continuous use. The case is left out in the rain and full southern California sun. The Homebridge-YoLink plugin has also worked perfectly — allowing easy review of the temperature, as well as triggering automations in Apple HomeKit.

I use these in a couple of different ways and they have been extremely useful. For my pool and hot tub, I mount the sensor under the skimmer cover and let the probe dangle into the water. That lets me see the water temperature at a glance, and I can set alerts so when I am heating the hot tub, I get notified when it reaches the temperature I want. The sensors are not fully immersed, but they have held up well to outdoor exposure. I did have one instance where water got inside a sensor, but after cleaning it out, it started working again without issue. I also use one in my pool filter shed with the probe attached directly to the filter motor. After having a pump fail to prime once and overheat, this has been a great safeguard. I now get an alert if the motor temperature goes too high, giving me time to shut it down before damage occurs. For monitoring temperature and getting timely alerts, these have been very effective and reliable for my use cases.

This temperature monitoring system software failed when our deep freezer compressor stopped working. The system sent one high temp alarm notification at 5 degrees and never sent another notice that the temperature continued to raise to 70+ degrees. Over 7 days the freezer temp increased and the software shows all the temperatures logged by the sensor on the app, but no further notification was sent to me letting me know of the continued temperature raise. This is the only reason we purchased this system because of the alert system, unfortunately I was not aware it is not programmed to alert you after one alert is sent. The entire freezer contents around $1,000 worth of food were found because we opened the door to remove food and found the contents to be completely thawed, spoiled and had to be disposed of. I notified the company regarding this software/equipment problem, and they said this is how their equipment works, and the alarm software and equipment worked properly. There was NO compensation for the food loss and was told "Sorry" when I contacted the company letting them know of this equipment and software failure. I requested some food loss reimbursement since I have all the logs showing the system was aware of the temperatures and I was informed if they covered food loss for everyone they would be out of business. That says the company knows they have a problem with their products failing and still are happy to sell them with the loss being placed on you. I DO NOT recommend this product. I would NEVER use this product ever again and have replaced my system with a ThermoWorks Node product.

I purchased and installed this on a small anchor a mostly hidden feature wall on my in-ground swimming pool. The box sits above the water level, hanging about 8 inches above the top edge of the pool surround, with the wire hanging down into the water. It tracks the pool temperature on an hourly basis, allowing me to see how the pool's temperature is swinging throughout the days. With the amazing range of the YoLink LoRa communication protocol, this thing has NO problems remaining connected with the YoLink hub that's on the other end of the house, on the second floor, in a closet. Beyond working great for tracking water temperature, this unit has proven quite durable and waterproof, surviving deluge level water, including the recent Hurrican Beryl, with no issues (and nicely tracked the roughly 10 deg. F drop in average water temperature brought about by the hurricane). The only downside is the continued requirement that all YoLink devices must have an Internet connection. This sensor will store values when the Internet is unavailable, and then transmit them when the connection is restored, but it would be nice if YoLink would come out with a solution that allows fully local sensor tracking.

Bought for my freezer.. works like a charm!!

Sensor and hub work brilliantly, easy setup, excellent range and battery life. Integrates with home assistant easily and YoLink app works well. Unfortunately US and UK devices are incompatible, which wasn't mentioned before purchase, so importing YoLink from Amazon US is best avoided. Sadly it appears a UK/EU version of the weatherproof temperature sensor isn't available yet.

The photos show an outdoor YoLink temp sensor with probe being used to check temperature of compost and send alert when temp reaches 150 degrees F. It has worked for this application flawlessly since the end of May. Note that the thermo well and the black connection housing have been supplied by us and allows the probe to be inserted into the compost with little effort. One of the photos shows a monthly readout of temperatures. For anyone looking for a very reliable reporting device for compost or soil temperature this could be what you need. I plan to add many other YoLink sensors over time and eventually replace at least part of our security system especially in buildings that are constantly losing connection with our panel. I highly recommend YoLink products for ease of setup and their ability to work when beyond communication range of many other sensors.

Worked great for the pool hooked up to our existing hub for water leaks easily with scan code

I've decided I just love YoLink products and this remote wet or dry temperature probe is no exception.