Smart Leak Sensors, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor Compatible with Alexa and IFTTT Leak Detector with App Alerts and Remote Monitor, 4 Pack, YoLink Hub Included

Notifications are excellent and very accurate when detecting water

Easy set up with QR code scan. Works well on tests/simulated leaks.

Excellent Product

Bought 2 to monitor a leak in the roof, which they did well and averted disaster. Bought 4 more for around water tank, behind dishwasher, washing machine etc.

it is impossible to use with Alexa, it does not work with Alexa as indicated in the description. I asked the support group for help, but they never answered to me. This service is just for show, in fact it is non-working. You won't hear any signal, just get a notification on your phone. A dubious and very expensive device is no different from cheap analogues.

Highly anticipated purchase, unfortunately it did not live up to the product marketing. Tried over two days to get the Hub to work on Ethernet and WiFi but would constantly dropout. Contacted Tech Support, who to be fair did what they could but in the end had to return the kit for refund

Happy with the product as it has help deck about 5 leaks so far in 4 years. I keep these sensors in under sinks and in sump pump area.. batteries still show about 80% full after 4 year mark.

Facile a installer, sms et mail sans abonnement. Attention notice en anglais

I purchased the YoLink system with four water leak sensors back in 2021. Four years later, all sensors are still running on their original AAA batteries. I think the system’s low power consumption is because of its efficient communication protocol. It clearly outperforms typical Wi-Fi-based devices. I am impressed. Today, one sensor went offline, so I looked into support options. To my surprise, there was a phone number I could call and even more surprising, a real person answered and worked with me to troubleshoot the issue. For the price I paid, this level of service is beyond expectations. Will I buy from YoLink again? Absolutely. Highly recommended.

This Yolink water leak sensor system is really, really, excellent. I installed the hub and four sensors about a week ago and I am impressed. I first noticed the info about its LoRa radio link between the sensors and the hub. As an engineer I wanted to understand more about that technology. First, could it reliably maintain the link for that kind of distance, and second, can it do so with such a small battery draw to make it sensible for battery only powered sensors. If you read about LoRa on Wikipedia, along with the Chirp transmission method, you can see why it’s exactly the right radio link for small battery powered sensors at a long distance. It’s the same type of low speed data link that scientist use to track tagged animals in the wild. They need a small battery powered transmitter to chirp a few bits of data for as long as possible and over the longest possible distance. LoRa does that. And now the people at YoLink have used the same technology to build what appears to be the ideal system for homeowners to prevent a water leak from destroying property. One tech note here. When I first deployed the sensors in a guest house about 150 feet from the hub in my main house, I saw that the sensors were running with a radio link receive level of about -37dbm. That info is available from looking at the phone app. That is a very strong signal despite five or six walls and150 feet distance. However over about a day I noticed the radio link level dropped down to about -100 dbm. Even though one would think that is a low level, it’s actually still a good signal for a LoRa link. I think YoLink has done a very cool trick and have the sensors drop the transmitter level over a period of time in order to conserve battery life, at the same time still maintain a solid data link. That is why they are able to get years of life from a set of normal batteries in the sensor. It’s the perfect way to operate the alarm system. Loved the wired Ethernet connection option also. I suggest you use it instead of Wifi for the hub. I was so impressed with the initial hub and sensors after a couple of days I decided to go forward with purchasing the siren and water valve cutoff unit. I now have those in place and tested multiple times. The whole system works perfectly. When I place a moist paper towel under one of the sensors it alarms within seconds, the siren goes off, the water valve closes, I receive a notification on my iPhone, and an email as well. All four sensors were tested that way and they all four worked flawlessly. The hardware seems really high quality. Fit and finish, the cables for the hub and siren, and the sensors look to have good sealing to maintain the batteries in a dry and solid housing. I understand changing the batteries will be simple with just removing a few screws and taking the sensor apart. That is way better that just a clip like battery cover design. I did notice that the water valve hardware is not stainless steel. That will not be a problem if your water valve is inside, but mine is mounted outside. I plan to build a small housing to fit over the water valve to keep it out of the weather, along with keeping the steel hardware greased to prevent corrosion. But for the price, I think its an amazing device and system to same you from the disaster of water damage. Now a word about support, After I received the siren and water valve and got them paired to the hub it was not exactly clear if they were ready to automatically do their thing when a sensor alarms. So I called the support line and right away Clair answered and within a few minutes explained the process of getting things properly set up for automatic siren and water valve operation. She took the time to capture and send me screen shots of the app and stepped me through the process. The key is clicking on the Smart button on the app, then the automation button, then + to add a rule for each sensor. It’s quite easy if you just hit those buttons in the app. Setup took no more that a few minutes. Thanks Clair. I get the impression that YoLink has set the standard for a perfect water leak prevention system. The fact that’s it’s low cost is just an added benefit. And another note. My work involves taking care of high powered water cooled television transmitters across the country. I am planning to install YoLink sensors in every location. The cost is so low I will just add it to my monthly expenses. It’s not even a capital expense to do such an important upgrade to my remote sites. Just get the things, you will not regret it. Rick in Pacifica, CA.

Highly useful. This product has saved my life, cutting star because this product doesn't give you calls/siren! If you are sleeping, you will miss text msg and app alert!