YoLink Smart Wireless Thermometer Hygrometer, 3-Pack, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts, 5 Years Battery Life- Hub Included
$56.99
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LORA > WIFI! YoLink devices don’t use your WiFi, ensuring no crowding or slowing down of your network. Instead, they operate with a unique LoRa-based, long-range, low-power wireless protocol. Place smart devices in areas WiFi can’t reach—outdoors, several floors away, in fridges, gun safes, or beyond WiFi range! Using YoLink’s industry-leading technology, this sensor monitors up to 1/4 mile in open air.
Temperature & Humidity Monitoring: Accurately track temperature and humidity levels with high precision, delivering regular updates to the YoLink app. Manage environmental conditions in your home, greenhouse, fridge or freezer, barn, bedroom, chicken coop, dog kennel, plant nursery, or child’s nursery—anywhere you need reliable monitoring. Perfect for maintaining optimal conditions across a wide range of locations and uses.
Customizable Alerts & Notifications: Stay informed with multiple alert options! Set custom thresholds for temperature and humidity, and choose to receive alerts via text, email, or push notifications. Apple users can bypass silent mode with “Critical Alerts,” while Android offers similar options. SMS messages are limited to the total of 5 times each device plus 5. A hub and one sensor provides you with 15 free SMS per month.
Battery-Powered with Extended Lifespan: Powered by two AA batteries, the sensor delivers up to 5 years of continuous operation, depending on usage and environmental conditions. Receive real-time low battery alerts via the YoLink app, ensuring you’re notified when it’s time for a replacement. Designed for convenience, its long-lasting battery life minimizes the need for frequent replacements, making it perfect for hard-to-reach areas and critical monitoring applications.
IFTTT & Alexa Integration: trigger IFTTT applets based on high or low temperature set points reached (when device alerts). Voice query Alexa for the temperature (only; humidity not supported at this time). Triggering Alexa routines is not supported at this time.
Commercial-Grade Accuracy and Wide Environmental Range: Designed for precise environmental monitoring, YoLink Thermometer Hygrometer delivers temperature accuracy of ±0.36°F (0°C to 54°C) and ±0.72°F (-20°C to 0°C), and humidity accuracy of ±3% (10%-90% range). It measures temperatures from -4°F to 129°F (-20°C to 54°C) and humidity from 0% to 100%, ensuring stable performance in various environments, whether in cooler temperatures or warmer conditions.
8 reviews for YoLink Smart Wireless Thermometer Hygrometer, 3-Pack, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts, 5 Years Battery Life- Hub Included
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$56.99
MontanaGlen –
Yolink hit it out of the park with this!
This is an amazing system! So far, I’ve just got the hub and 3 temp & humidity sensors. Simply put: they work flawlessly. I use them in my greenhouse, on the shaded patio, and in my living room.The patio sensor controls my HVAC with high & low temperature alarms that are directly readable by Alexa. Each sensor lets me choose temperature points below or above which will send a high or low temp alarm signal to Alexa (the software calls it Motion Sensing, because their ecosystem probanly has motion sensors, too, andbuses this alarm function). At first, I had a Rube Goldberg-type Frankensystem setup using IFTTT to read those alarms and then, through some other software, it would activate one of two Alexa Routines I wrote. Complicated, but it usually worked.After the first hub software update, lo! and behold: the sensors’ alarms are now directly readable by Alexa when assigning a Routine trigger in Alexa’s Smart Home trigger choices. These temp & humidity sensors can be set to poll every 10 to 60 minutes, and mine send the simple high or low temp alarm to Alexa, which, in turn, communicates with my wifi-enabled mini-splits or smart boiler thermostat. Above 51°, the mini-splits come on at the temperature I pre-selected for each of its 4 heads. Below 50°, the mini-splits go off and the boiler thermostat is reset to the comfort level I’ve preset there.I would have gladly paid hundreds to have a reliable sensor system like this. These were less than $40, if I recall.For our utilities in Montana, that seems like the cost-effective point to make the decision for gas or electric heating, but I’m still experimenting. Your mileage may vary.Of course, I get temp & humidity warnings for the greenhouse, as well, when humidity is too high or low, as an added bonus! If my heater out there goes out, I can rush out to fix the situation, or water my plants, as needed.Next, I plan to add a leak detector, and have Alexa warn of leaks in my basement, to duplicate what my Insteon system already does. But the Yolink system is simpler, cheaper, and I can get verbal warnings via Alexa. When I add a whole house powered water valve, I can have Yolink to turn off the valve.This system has given me peace of mind, and saves me money!Signal strength is amazing, even from my greenhouse, way in the back yard, and with steel siding on my house! Sensor-to-hub is not in the wifi band, so there’s no neighborhood interference, either.So am I happy with these? Thrilled!!
Amazon Customer –
Impressed!
Works better than I expected! The range is great and it seems accurate for my needs. This is my 2nd 3-pack, also got a 3-pack for my sister. I also have one Smart X3 outdoor data logger with probe and a 3-pack of the smart freezer temperature only sensors. I was very happy this winter with the ability to monitor conditions around our spread-out property, especially at two water wells. The data logger is about 300’ from the base in a metal shed, the base is in the house with a barn and shipping container between them. One sensor is under a raised structure surrounded by brick, also about 300’ from the base. It’s truly impressive that the signal still works under these conditions.Edit: And the in-app user manual is very detailed and easy to understand. And was so easy to set up!
Ivan –
Very Satisfied
Easily set up the hub with both wired and wifi connections to my router but had issues with the hub staying online. I also had issues connecting 2 of the 3 sensors and with them staying online. Then I disconnected the wired connection to the hub leaving only the 2.4 GHz connection and everything startrd working great. I was ready to pack it all up and send it back but now I’m real pleased with the functionality. The 3 sensors are far apart in different areas away from the hub and all 3 display and update regularly. I’m glad I purchased this product.
googleplex –
Works great. Super easy set up.
These are great — super easy to set up, work with Alexa and Home Assistant. At $15-20 a pop they’re a bit pricey, but the range and battery life are great, so they’re worth it, esp for putting places like attics or crawlspaces. If you need to see the reading at a glace, get the version with an LCD display for a wee bit more. Remember that you do need one hub to use any Yolink LoRa devices. Watch out for the older model that costs the same but doesn’t provide humidity.
Jim W –
Excellent temp/humidity sensor.
With a Yolink hub this device is very easy to set up. Works just as advertised, immediate access to temp and humidity. I have another Yolink device that has worked very well, so had confidence this would as well, and so far it’s excellent. Recommended.
Kenneth –
Yolink monitors work flawlessly—easy setup, intuitive app, and reliable alerts.
I recently installed three Yolink temperature‑monitoring devices at our Fredericksburg rental, and they’ve been excellent. The setup was quick, the app is intuitive, and the alert notifications give us reliable visibility into the property when guests are on site. A simple, effective solution for remote monitoring.
Ellen J. MacCormack –
Peace of mind…recommended
I have had 3 monitors for approximately 3 months and work very well. I like that the hub is it’s own hot spot and can reach to other buildings on the property for monitoring when the distance would be too far for our house internet. Initial set was fairly easy, but then we changed our internet provider and had to reconfigure, not so easy. I finally got it, but took me awhile. Ever since, it has been fine, just like before the internet change. The system is very helpful especially when we are out of town and can still be assured the refrigerator and freezers are operational. I would definitely recommend.
CRob –
Much better than solely wifi-based temperature alarms!
Easy set up, accurate readings, set your own high and low temp limits for each thermometer for alerts to your phone regardless of your location! The app is intuitive and uncomplicated.This system uses wifi only for the hub so it can send you alerts and you can monitor readings from anywhere as desired. Communications between thermometers and the hub are not wifi – YoLink uses superior wireless technology for much greater range and low power consumption.