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 Included!

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.

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.

I'm using this with a Yolink temperature sensor in a hot tub, so that I am alerted if power goes out during freezing temperatures. Very easy to set up, temperature sensor was easy to calibrate for accurate readings, works perfectly for this purpose.

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.

In this age of cheap Chinese garbage, Amazon junk listings, fly-by-night companies, and generally low quality products, it was a REAL TREAT to come across this company and its products. In fact, this product exceeded my expectations by so much that I was half-expecting something terrible to happen, like it bursting on fire or something similar. Firstly, every one of the products I bought, (shut-off valve, hub, 3 water leak sensors, 2 outdoor temp sensors for freezers, and 2 indoor temp sensors for environmental control), are SOLIDLY MADE. You can feel it in your hand, and it's a feeling that's getting rarer and rarer these days for consumer goods. They're well-made and just SOLID, with absolutely nothing feeling cheap at all. All of the devices went into my freezers, attic, and garage without issue. When I got to the software, that's where I really expected there to be problems, since many of these "smart" companies aren't very smart at all, and they don't seem to test their apps for user-friendliness before releasing them. However I was amazed at how simple it all really was. Getting the hub online, adding devices to it, creating rooms, configuring alarms, etc, all of it was quick and absolutely painless. The only real quibble I could have, (and it isn't much of one at all), is that the alarm section took a moment to figure out. But within a ridiculously short time I had all the devices added and their operating parameters set. Perhaps another helpful note - when you turn on a device for the first time, give it a full minute to link up to the hub. If you don't, the device will add to the hub but it will show as offline, and won't appear to ever come online. After doing that twice, (adding the device within a few seconds of turning it on), I then waited a few for the rest and they added without issue. All of my testing, (temperatures turning on fans and heaters, water leaks activating the valve, etc), all passed with flying colors. All in all, this just feels like money well spent, and YoLink has become one of my favorite companies. Highly recommend.

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.

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!

This thing is terrible. It works well, but changing the batteries is a nightmare. There’s these tiny little gaskets that cover the screws that hold the battery cover so that water can’t get in. Problem is, these little cylinder shaped seals are impossible to get out without damaging them over time with tweezers. I just tried opening mine to change the batteries and one of the screws are rusted and when trying to unscrew, it rounded off due to the rust. So it’s now useless to me. Can’t get the screw out so it’s permanently screwed closed. Terrible.