YoLink Temperature Sensor with Probe, YS8004

I recently purchased the YoLink Weatherproof Fluid, Air, Surface Extreme High/Low Temperature Sensor with Probe, and I couldn't be more satisfied with my decision! This sensor has exceeded my expectations in every way. First off, the installation was a breeze. The instructions were clear, and within minutes, I had it set up and running. The weatherproof design is a game-changer, allowing me to use it outdoors without worrying about the elements. What truly impresses me is the accuracy of the readings. Whether I'm monitoring the temperature of my outdoor equipment or checking the conditions in my greenhouse, this sensor provides real-time data that I can trust. The extreme high and low-temperature range is perfect for my needs, and the probe is incredibly sensitive, ensuring I get precise measurements every time. The YoLink app is user-friendly and allows me to monitor temperatures from anywhere. I love receiving alerts on my phone when temperatures reach critical levels, giving me peace of mind. Overall, I highly recommend the YoLink Weatherproof Temperature Sensor to anyone in need of a reliable and accurate temperature monitoring solution. It’s a fantastic investment that has made my life easier and more efficient!

I will start off by saying if you need an extremely accurate thermometer (like down to 1/10th of a degree) I would look elsewhere. But for a general purpose thermometer with notifications and a long range it is amazing. Much better than Bluetooth ones I’ve had in the past. It was extremely easy to setup (with required hub) If you have need to know the temperature of something constantly that is a decent ways away from your wireless network I don’t think you are going to beat this product. (I use it for my outdoor worm bin)

Getting reliable and accurate pool water temperature seems easy but most thermometers, especially digital ones are not very accurate or not calibrated properly from factory. In an effort to ensure the most accurate readings I’ve used multiple analog (alcohol and even mercury) thermometers with varying degrees of success. Getting all thermometers to agree seems impossible while most of the good ones do come very close to each other. Now using analog ones is great since they never need calibration, however they are not practical as you have to go to them rather than get remote readings, and of course there is no historical data. In my case I wanted accurate remote readings often and nothing floating around in the pool, so I took advantage of a water pit in the pool concrete deck, and installed multiple temperature sensors in the same spot and begun testing and gathering temperature data. Before getting the YoLink LoRa Temperature Sensor YS8014 X3 I had both several Aqara and YoLink YS8004 sensors. I had some connectivity issues with the other brands due to the “underground” location, however all the YoLink sensors connected perfectly and quickly, so I narrowed down my options to YoLink. While all YoLink sensors seemed to work very well, I was curious to see how much better the new YS8014 X3 sensor was and how it compared to the others. While the end results proved that all sensors were very close to each other, I really liked that the new YS8014 X3 allows for more samples more often, as low as 1 minute and as long as 1h. Interestingly 1h is the norm with most such sensors. The YS8014 X3 also has a convenient LCD display that will also automatically turn off at your choice timeout to save batter life. Just like the other YoLink temperature sensors the YS8014 X3 uses easily replaceable batteries but now there is a 2y and 5y battery option at purchase, so more flexibility and longer battery life overall. It also saves temperature data internally in case the hub us off-line then sends it once it re-connects so no data is lost! I will end up keeping the YoLink YS8014 X3 sensor in the pool water pit and move the others to my kitchen refrigerator and garage fridge, to keep an eye on them and get alerts should the cooling stop. I lost a full fridge of items a while ago due to a failure of the garage fridge, and at the time I had no sensor to monitor the inside as all I tried could not communicate from inside the fridge, except YoLink! Anyway, I am very pleased with ALL the YoLInk temperature sensors and would certainly recommend them for almost any need given the flexibility features, great support services and long range LoRa technology.

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.

Works great so far to track our outdoor remote refrigerated unit. Easy to set up and notified us when something was wrong.

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.

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.

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.

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 use this to remotely monitor the temperature inside the eavestrough for my heat trace. The attached probe is waterproof and the Yolink app allows me to set alerts to automatically trigger on/off of a Yolink outdoor power outlet to turn the heat trace on and off to avoid freezing and blocking of a downspout. This also saves me money when temperatures are so cold that snow isn’t melting or warm enough that water is flowing that it will automatically turn off. Love it!