YoLink Smart Home Starter Kit: Hub & Water Leak Sensor 4-Pack, SMS/Text, Email & Push Notifications, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Home Assistant
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Availability:
Only 1 left in stock, order soon!
Arrives
Wednesday, Sep 10
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Style: 0 dB 4 Sensors
Features
- "SMART WATER STARTER KIT" YoLink Hub Leak Detection Starter Kit, including one hub and quantity four Water Leak Sensor 1. Hub supports ethernet and/or WiFi (2.4GHz, only). Connect to your router's ethernet port for our "Plug, Plug & Play" easiest set-up - be up and running in just minutes!
- SET IT & FORGET IT! Installs in seconds! The YoLink wireless Water Sensor could not be easier to install; just place near or under the equipment you wish to monitor. Suggested uses are near or under, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks, in or near sump pumps, and by any other location subject to water leaks and flooding.
- Note: This product requires a YoLink Hub to connect to the internet and work with the YoLink app. It does not connect directly to WiFi or local networks.
- EXTREME LONG RANGE! Powered by LoRa technology, the long-range yet low-power system offers the industrys longest receiving range in the market (1/4 mile). Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property.
- UNLOCK YOUR SMART HOME! The YoLink Hub can support more than 300 devices and is compatible with the entire line of YoLink smart products, including security, environmental, power & lighting, smart locks, and cameras (coming soon!).
Color: White
Brand: YoLink
Power Source: Battery Powered
Compatible Devices: Smartphone
Product Dimensions: 4.33"L x 4.33"W x 1.06"H
Battery Description: AAA
Number of Batteries: 8 AAA batteries required. (included)
Voltage: 3 Volts
Control Method: App
Mounting Type: Wall Mount,Floor Mount
Maximum Range: 1.32E+3 Feet
Sensor Technology: Contact Sensor
UPC: 850024791565
Manufacturer: YoSmart
Part Number: YS1603+4YS7903
Item Weight: 1.34 pounds
Product Dimensions: 8 x 2 x 4 inches
Item model number: YS1603+4YS7903
Batteries: 8 AAA batteries required. (included)
Included Components: Batteries
Batteries Included?: Yes
Batteries Required?: Yes
Battery Cell Type: Alkaline
Description Pile: AAA
Date First Available: February 29, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 10
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: 0 dB 4 Sensors
The setup of the YoLink Water Leak Sensor 4-Pack with Hub was simple. All you need to do is download the app on your phone, create an account, and register your devices. I won’t get into how to navigate the app—it’s very intuitive. Instead, I’ll focus on a few critical points that you should keep in mind: 1. You absolutely need the hub. While the app lets you register the leak sensors independently, this does not mean the hub is optional. The hub is essential because the sensors communicate with it using LoRa, a long-range, low-power wireless protocol. This technology is what gives the sensors their impressive multi-year battery life. 2. Registering the hub is quick and reliable. Just power up the hub and connect it directly to your router with an Ethernet cable. This is the most reliable and straightforward way to get it online. Once connected, open the app—your hub will be automatically detected and registered. It really is that easy. 3. Registering the leak sensors takes a quick button press. To add a sensor, press the on/off button once until you see a brief red light. That puts it into pairing mode so you can complete the setup in the app. Avoid repeatedly pressing the button, as that may actually turn the device off—something that might have tripped up other users. 4. Extra sensors are affordable and worth it. Leaks can happen anywhere there’s plumbing: water heaters, bathrooms, kitchens, laundry areas—you name it. If you have a space where water and electricity meet, like a garage with a water line, I highly recommend placing a sensor there too. Given how inexpensive additional sensors are, it’s a small investment for big peace of mind. The devices themselves feel solid and well-made, with no loose wires or flimsy parts. As for long-term reliability, time will tell—though hopefully I never have to find out just how well they perform under an actual leak scenario.
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Reviewed in the United States on July 13, 2025 by Philico
Style: 0 dB 2 Sensors
Worth it : A bit pricey compared to others, and needs a cheap, small hub to operate, but Yolink is definitely worth the price, if accuracy is your goal. Leak sensors work perfectly. But bought this ecosystem more for their temp + humidity sensors. App comes with the ability to set exact temp and humidity alarms, which can be sent via App Notice, SMS Message (75 Free SMS Alerts Per Month) and/or Email Alerts, all of which are infinitely customizable. Setup is super quick, once you figure out how to scan the barcodes on each device with the App. Hub setup took 5 mins tops. Extremely long range, about 1-3km in urban areas. ProTip : Once temp sensors are setup. allow at least a few hours for them to stabilize. Sensor are very accurate. Six temp + humidity sensors all showed the exact same reading within 0.01% after six hours sitting next to each other, and App also allowed each sensor to be adjusted if needed. Highly recommended !
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Reviewed in the United States on July 19, 2025 by DaveFromBoca
Style: 0 dB 4 Sensors
I Figured it was time I left a review for, since I've actually been using the YoLink leak detection device since 2021. It's worked flawlessly for me. I get emails when it goes offline because of power outages. I haven't had any leaks, but I'm confident it would let me know if I did. I've obviously tested it several times with a self started "leak" and it works perfectly, so I don't see why it wouldn't with an actual leak. I've been happy with my purchase and appreciate the peace of mind. I'm surprised to see quite a few negative reviews. I've found that all the things that matter, like easy set up, range, connectivity and sensitivity all work as advertised. I live in a two story home and the hub is upstairs and the main sensor is in the basement utility room, which is quite a distance away. I can happily report that I've had zero problems with range and connectivity. Like I said, I'm a happy camper and would definitely recommend!
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Reviewed in the United States on July 4, 2025 by SageSavvySilver
Style: 0 dB 4 Sensors
I bought the kit that came with a hub and four leak detectors. I bought, additionally, the temperature & humidity sensor and two motion detectors. I bought these for a second house that is not always occupied. Setup was incredibly easy - I connected the hub to power and one of the network ports on my router, then immediately setup the wifi in the app and moved it upstairs away from the router. Connectivity over wifi works great. The Android app works well and all the settings are easy to find. One thing worth noting - it does NOT support the 5G wifi band (it warns you of this in the app), so if you have separate SSIDs for 2.4G and 5G make sure you use the 2.4G one. I then connected all my sensors by scanning the QR codes on them with the app. I recommend connecting all your sensors first before creating any "rooms" or automations as you can do it in bulk once you get your sensors scanned in. The only reason I deducted a star was poor QA. The water sensors all operate off two AAA batteries each, and in one of my sensors the batteries were flat dead. I tested them - not low voltage, flat out dead. They are garbage chinesium batteries so while I am not surprised, this should have been caught before the sensor was packaged and sent out. Replacing the batteries was easy enough - four tiny screws were hidden under the feet on the bottom and the device opens in two halves, and you can pop in new batteries once opened. Based on other reviews, these batteries tend to last years so you might not ever need to do this. When I had the unit apart I had the opportunity to take a look at the mechanisms. The main PCB was of high quality, and all the soldered components were stout. There is a very nice gasket/seal that runs around the perimeter of the sensor to keep water out - meaning that even if the sensor were completely submerged I suspect it would not be damaged beyond use once dried out. I have not used any of the automation features, but it looks like they sell an automated water valve you could use to shut off your water if a leak were detected, for example. It also integrates natively into Alexa, Google Assistant, and IFTTT. Again - I did not use any of these features but if you've messed with any of those before you know what to expect. If you don't know what any of that means, don't worry about it. Overall I am very pleased and I will be purchasing more sensors for this setup. The Android app is easy to use and the added peace of mind is great. I highly recommend the YoLink systems.
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Reviewed in the United States on October 22, 2023 by tc