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YoLink

YoLink Water Leak Sensor 1 Kit: 2-Pack + Hub

  • Based on 83 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Oct 22
Order within 4 hours and 14 minutes
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Style: 0 dB 2 Sensors


Features

  • Complete plug-and-play kit: hub plus Leak Sensor 1 units for whole-home coverage at toilets, sinks, water heaters, laundry, dishwashers, and sump areas.
  • Long-range LoRa: reliable coverage where Wi-Fi struggles (up to 2,034 ft in open air); get app, email, and SMS/text alerts and name sensors by location.
  • Works even without internet: with YoLink Control-D2D, sensors can directly trigger YoLink sirens or shutoff valves for local protection during outages.
  • Silent design: Leak Sensor 1 has no built-in siren; add SpeakerHub or a YoLink siren for audible or spoken alerts if desired.
  • Scalable IoT platform: one hub supports 300+ YoLink devices; part of a whole smart home/building ecosystem; hub options include standard Hub, SpeakerHub, and Cellular Hub.

Description

YoLink offers two leak sensors for different needs. Water Leak Sensor 1 is a quiet, discreet option that relies on phone notifications. Water Leak Sensor 4 adds a loud built-in siren, making it ideal for high-risk areas like basements or garages. Both connect to the YoLink Hub for instant alerts. Runs on 2 AAA batteries (included) for up to 5 years of nonstop leak protection. Stays connected up to 2034 feet, even through walls and floors where WiFi fails. Fully sealed design survives direct water contact, perfect for damp or flood-prone areas. Receive instant app, SMS, or email alerts. Works with Alexa, IFTTT, Home Assistant, and more. Power down? WiFi out? No problem. With YoLink’s D2D direct control, Leak Sensors continue to work seamlessly with YoLink Smart Valves and Water Meters, shutting off water the moment a leak is detected—no cloud, no delay, no worries. 1 YoLink Hub supports over 300 devices with long-range LoRa, ideal for large homes and even high-rise buildings. Reliable coverage where WiFi fails. Manage multiple YoLink systems across properties with Readius, a cloud platform for centralized monitoring, alerts, and reporting at scale.

Color: White


Brand: YoLink


Power Source: AC/DC


Compatible Devices: Smartphone, Alexa, IFTTT, Home Assistant


Battery Description: Alkaline


Power Source: AC/DC


Compatible Devices: Smartphone, Alexa, IFTTT, Home Assistant


Battery Description: Alkaline


Number of Batteries: 8 AAA batteries required. (included)


Control Method: App


Mounting Type: Wall Mount


Maximum Range: 1000 feet


Sensor Technology: Contact Sensor


Color: White


Item Highlight: Leak Alerts via Mobile App, Email and SMS, Up to 5-Year Battery, Works with Alexa, LoRa YoLink Protocol Up to 2034 Feet


Brand: YoLink


UPC: 810121542330


Number of Packs: 3


Unit Count: 3 Count


Size: Without Siren


Manufacturer: YoSmart


Number of Items: 3


Built-In Media: Batteries


Model Number: YS1603+2YS7903


Mfr Part Number: YS1603+2YS7903


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Zip Pay in 4
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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Easy to set up, works perfectly.
Style: 0 dB 2 Sensors
Review Image by Sarah Minto Sarah Minto
Review Image by Sarah Minto Sarah Minto
I bought this because occasionally the drain tube on my air conditioner gets clogged up and leaks water into the basement floor. It was extremely easy to set up. And I’ll be darned, less than 36 hours later, that’s exactly what happened. I got the alert and was able to solve the problem immediately.
Reviewed in the United States on May 19, 2025 by Sarah Minto Sarah Minto
    • Good insurance
Style: 0 dB 2 Sensors
Bought after a slow dishwasher leak created a huge mold problem. I tested the sensor in a small spill and it works. Hopefully will know about leaks before they become a problem in the future.
Reviewed in the United States on May 21, 2025 by Nick
    • Reliable sensor. Phone notification.
Style: 0 dB 2 Sensors
Reliable leak detector without the loud alarm. Connect to your local internet, place in area, forget. Install app forget. Leak detected phone notifies you. Super easy and love it. Love it. I've used loud alarm ones before and that works if you're there or can hear it. If you're not there you can't turn the loud alarm ones off so it annoys the neighbors or you miss the leak then it defeats the purpose. I love this yolink one because it digitally notifies you if there is a link. It's great if you're a way form work or out of town and it says leak detected. This is exceptionally helpful. These have a 5 yr battery life supposably so you do not have to replace them every couple of years like others. I'd rather invest into a sensor than have thousands of dollars of water damage. ... show more
Reviewed in the United States on April 8, 2025 by Ranee
    • Excellent customer service.
Style: 0 dB 2 Sensors
Very good customer service. I couldn’t figure out how to get the water leak notifications to show up on my phone even though I thought I was doing it correctly in my settings. Customer service was very patient, very helpful, and in no time the system is up and running. I tested it several times, and it’s great! ... show more
Reviewed in the United States on April 29, 2025 by jalden
    • Product satisfaction for customer service
Style: 0 dB 2 Sensors
Great customer service via phone. Helped me set up my system. I recommend this product.
Reviewed in the United States on May 6, 2025 by D
    • great product
Style: 0 dB 2 Sensors
Setup was surprisingly easy. I’m not super tech-savvy, but the app walks you through everything. The sensors connected to the hub right away, and I placed one under the kitchen sink and another in the laundry room.
Reviewed in the United States on April 8, 2025 by Maria
    • Easy installation with ethernet cable
Style: 0 dB 2 Sensors
Fast shipment. Easy installation. Best to use ethernet cable for internet.
Reviewed in the United States on April 19, 2025 by stephen j vande stouwe

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