Water Leak Sensor 4 with 105dB Audio Alarm 3-Pack, SMS/Text, Email & Push Notifications, Freeze Warning, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Hub Required!

J’avais déjà un ancien détecteur de fuite d’eau acheté après avoir réparé une toilette moi-même, mais je le trouvais assez coûteux pour en installer plusieurs dans la maison. Après avoir comparé les options, j’ai choisi les YoLink notamment parce que je voulais recevoir une alerte même lorsque je ne suis pas à la maison.J’ai commencé avec trois capteurs et j’en ai racheté trois autres quelques jours plus tard. Ils sont maintenant installés sous mes toilettes, sous le lave-vaisselle, près de la douche et à différents endroits où il y a un risque de fuite.Après plus d’un an, je n’ai eu aucune fausse alerte et j’ai eu une vraie détection d’eau dans une salle de bain. Le capteur a réagi rapidement et j’ai immédiatement reçu l’alerte sur ma montre. C’est exactement la raison pour laquelle je voulais ce système.Une fois le hub et l’application installés, ajouter un nouveau capteur est extrêmement simple : je scanne le nouvel appareil et il rejoint le système pratiquement tout seul. Je n’ai encore eu besoin de changer aucune pile.La seule chose à considérer est la zone que l’on veut surveiller. Ces petits capteurs détectent l’eau seulement là où ils sont déposés. Pour une grande zone où l’eau pourrait apparaître à différents endroits, YoLink offre aussi un modèle avec câble de détection que je trouve encore mieux adapté, même s’il coûte plus cher.Pour les endroits où une détection ponctuelle suffit, par contre, ceux-ci font très bien leur travail. Six installés chez moi et, jusqu’à maintenant, ils ont été parfaitement fiables.

They work well but it's quite time consuming to figure out how to get it completely set up so that you get notifications on phone. I had mine set up for quite some time before I realized that my phone wasn't notifying me when there is a leak.

A life saver. Put these anywhere there is a water source in the house. Quick notifications.

The YoLink Water Leak Sensor 4 should be the simplest product in the world to get right. Detect water. Trigger an alarm. Shut off a valve. Done.And to be fair, on paper, it absolutely nails it: long-range LoRa connectivity, a built-in loud alarm, multi-year battery life, and supposed support for device-to-device (D2D) automation so it can shut off water locally without internet.But once you actually try to use it as part of a real system, the cracks show quickly.The biggest issue is the same one that plagues the rest of the YoLink ecosystem: D2D is “supported”… until it isn’t.YoLink markets D2D as the backbone of reliability:Leak detected → valve shuts off instantly → no cloud, no hub, no delay.And yes, technically, the Sensor 4 does support D2D pairing. But in practice:• It feels like a secondary or backup feature, not the primary control path• Setup is unintuitive and finicky• Behavior can vary depending on what it’s paired with (especially newer all-in-one valves)Even YoLink’s own approach makes it clear that the system is really designed around the hub and cloud, with D2D as an afterthought.That’s a problem for a safety device.Despite the marketing, you’re still largely living in the cloud whether you want to or not. The system leans heavily on app-based automations, hub connectivity, and cloud monitoring. Yes, D2D exists, but it’s not where the product feels most reliable.There’s also the issue of responsiveness. LoRa is excellent for range, but it’s not always fast. In some setups, there can be noticeable delay, which is not what you want when a leak is actively happening.Then there’s setup friction. This should be dead simple, but instead you deal with awkward pairing processes, state-dependent quirks, and a confusing split between app automations and direct device behavior. It’s the kind of system where you’re never 100% confident it will behave correctly when it actually matters.At its core, the Sensor 4 has an identity problem. It doesn’t know if it wants to be a true fail-safe local safety device or a cloud-connected smart home gadget. Right now, it tries to be both and doesn’t fully succeed at either.The hardware itself is good:• Loud onboard alarm• Excellent range• Long battery lifeBut:• D2D is not as reliable or central as it should be• Real-world performance leans on cloud logic• Setup and behavior aren’t as foolproof as a safety product should beFinal verdict:If you’re using it just for notifications, it’s a solid sensor.If you’re relying on it for true, offline, automatic water shutoff, it’s not nearly as confidence-inspiring as it should be.3/10 — Good hardware, but the ecosystem and execution hold it back.EDIT:Shortly after submitting this review, one of the founders of the company reached out to me explaining the delay in the implementation of in-app D2D support, and several days later, the app was updated with full D2D support! I am wowed by YoLink's level of attention to remedying the issue. The device now works perfectly, 5/5 Stars!

We bought the Yo Link leak detector because our insurance company required it, now after having the system in our home for over 3 months we love knowing if a leak did occur, we could minimize our damage. The system works s advertised and we are happy to have it in our home. five st