Search  for anything...
YoLink

YoLink Water Leak Sensor 4 105 dB Alarm Kit: 4-Pack + Hub

  • Based on 1,715 reviews
Condition: New
Checking for the best price...
$72.98 Why this price?
Save $17.01 was $89.99

Buy Now, Pay Later

As low as $12.16 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 2 left in stock, order soon!
Fulfilled by Yosmart
Arrives Thursday, Oct 29
Order within 1 hour and 18 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Number of Items: 5


Features

  • Complete plug-and-play kit: hub plus Leak Sensor 4 units, each with a built-in 105 dB audible alarm for instant on-site alerts.
  • Long-range LoRa: reliable coverage where Wi-Fi struggles (up to 2,034 feet 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.
  • Low-maintenance power: each sensor uses 2 AAA batteries with up to 5 years typical battery life; easy replacement.
  • 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.
  • Whats Included: This package includes 1 YoLink Hub and 4 Sensors5 items total. The Number of Items: 5 refers to the five individual products in the package, not five sensors.

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 2,034 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


Product Dimensions: 7"L x 5"W x 2.5"H


Power Source: AC/DC


Compatible Devices: Smartphone


Battery Description: Alkaline


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


Voltage: 5 volts


Control Method: App


Audible Noise: 105 db


Mounting Type: Floor Mount


Maximum Range: 1000 feet


Sensor Technology: LoRa


Color: White


Item Dimensions L x W x H: 7"L x 5"W x 2.5"H


Item Highlight: Leak and Freeze Mobile App Alerts, IP67, Up to 5-Year Battery, Works with Alexa, LoRa YoLink Protocol Up to 2034 Feet


Brand: YoLink


UPC: 810121540855


Number of Packs: 4


Unit Count: 4 Count


Size: With Siren


Manufacturer: YoSmart


Number of Items: 5


Built-In Media: Batteries


Model Number: YS1603+4YS7906


Mfr Part Number: YS1603+4YS7906


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

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

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Reliable and effective
Very easy to setup. The sensors work immediately after connecting them without issue and can detect the water instantly. Device makes an alarm sound and can email you or send an SMS when water is detected. You are limited to 15 SMS notifications per month unless you pay more. However, that's generally more than enough you need. The signal range to the hub from the sensors is pretty good and has no issue in a 4000 sq ft house. A very good item for relatively cheap that could save you thousands. ... show more
Reviewed in the United States on January 9, 2024 by Gerry
    • Works Well & Easy Setup
Wow! Works well with reliable text, email and app notifications. Plug and Play functionality if Hub is connected directly to the router's ethernet's port. Note: There is a 30 limit per month text notification which is more than a homeowner will ever need. If you need more text notifications than 30 per month, you should consider getting a boat for your constant house leaks., Otherwise YoLink offers a subscription to raise the text notification limit of 30 per month to unlimited. But a subscription for the average homeowner is unnecessary. Product documents are plastered with contact info for 24-hour tech support as well as a phone number. Manual directions are written in plain American English. A great value. Love this product! ... show more
Reviewed in the United States on July 2, 2024 by Amazon Customer
    • Peace of mind
We have notoriously bad luck with water incidents at our new home. We had 2 separate occasions where water leaked through the ceiling from an A/C drip pan overflowing. We also had an issue with a slab leak in the kitchen. You would think after those incidents I would've invested in water sensors....but no. It wasn't until I woke up on Christmas morning to my entire house being flooded in 3" of water that made me finally come to my senses and order water leak sensors. For the Xmas incident, the water inlet valve under my kitchen sink came loose overnight and managed to flood the entire house in a matter of 5 hours. Had I had a leak sensor under the sink, Christmas wouldn't have been ruined and my house wouldn't have had thousands of dollars in water damage. So now I have water sensors on anything that has the potential to leak water. All the sinks (kitchen, bathroom, laundry room), all the AC drip pans, the water heater, the toilets, the washer and even the fridge and dishwasher. The Yolink system is incredibly easy to install. It took me about 20 minutes to pair all the sensors with the main hub and do the wet checks on them as well. I recommend labeling each sensor with its location (i.e. kitchen sink) that way you don't get confused on what goes where (if you're pairing a bunch of them). The app works great and you can set up a room, then the sensors that will be in that room. You can also favorite a sensor or sensors so that they show up on your dashboard on the app, allowing you to monitor the sensor for battery life or activity. You can also sign up for email and text notification if a leak is detected. Additionally, these make a very noticeable audible noise that can also be modified for duration and alert intervals. The app also keeps history logs of any incidents that the sensors experienced. Lastly, the range on these is amazing. I haven't had any issues with these being out of range (even in the attic) or going offline. To test each of these, I paired them all then set them on a wet paper towel. They immediately made a high pitched beep and send a corresponding email and text. To test the top sensors, I just used a dropper and put a drop of water on the top which yielded the same results. If you are a homeowner I cannot recommend these enough. In hindsight, I wish I would have installed these everywhere to avoid heartache, stress and thousands spent in repair. ... show more
Reviewed in the United States on January 25, 2024 by Lunachic
    • Solid Product that Perform but You Can't Change the Battery
This is a well made product that really perform. I did a small leak test and the results were fast and successful. The Apps is okay as it has all the necessary information. The wireless access is strong. My only issue is you can't change the battery. Supposedly, the battery last 5 years. We'll see. I do recommend this product to others. ... show more
Reviewed in the United States on August 22, 2024 by Mickey Thompson
    • Everyone should have these!
As an insurance agent, I recommend these to everyone! They can save you thousands! I’ve seen them save people tens of thousands of dollars. We have them under sinks, toilets, the water heater, and fridges. We installed them immediately in our new home and they already caught a slow leak behind the fridge. A lot of insurance carriers are giving discounts for having these. The app was easy to install, just follow the directions. I’ll definitely be recommending this brand to my clients (I’m an insurance agent). I’m a huge advocate for having these in every home! ... show more
Reviewed in the United States on August 25, 2024 by Whitney_ATL
    • Peace of mind is priceless
Got these for friends who have major areas of water concern. Can setup cloud based notification or just use the high pitched siren alarm that each sensor emits when triggered. Can also be setup to a networked remote water shutoff system if that is desired. Saved my friend's house from flooding when his water heater busted and started flooding the basement. Without it screaming bloody murder, might not have noticed until the entire wooden floor outside the utility closet had been ruined. Pros: Setup is straight forward with either manually using the noise alarm of each sensor and/or creating a cloud based notification system using text messaging to your phone. Has a phone appl with gui for setup and visual verification using cloud based service. Company is based in California If just using the noise alarm, can be setup in seconds. Just enable the batteries and set down the sensor where you want it to monitor for water. Phone app monitors battery level so you know when to replace. Cons: Depending on level of comfort in such things, setting up the remote monitoring node and account can be a minor challenge. There are YouTube videos on how to. Batteries require replacing every couple of years or so in the sensors. ... show more
Reviewed in the United States on October 1, 2024 by Ric

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...