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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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.
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Availability:
Only 1 left in stock, order soon!
Arrives
Friday, Jul 18
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: 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
Country of Origin: China
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:
Friday, Jul 18
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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Top Amazon Reviews
Style: 105 dB 4 Sensors
I bought this kit to replace my old Samsung SmartThings water sensors that stopped working, and I’m really impressed so far. I’ve installed the sensors by my sump pump, combi boiler, dishwasher, and kitchen sink. They seem to work reliably and the 105dB alarm is a nice bonus for extra peace of mind. I especially love that they integrate smoothly with both Amazon Echo and Google Home. Setup was simple, and the long-range LoRa connection is a big plus. Highly recommend!
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Reviewed in the United States on May 17, 2025 by HandyRN HandyRN
Style: 0 dB 4 Sensors
This is a great product for peace of mind if you own or rent. I had a flood in my bathroom and was not home. After this I got these, it has helped stop damage in my whole house. Love that you get real time alerts. Also, these work well under the dishwasher and fridge. Also helped stop leak from the dishwasher during the night. Easy to install and use. The price is right and gives accurate readings.
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Reviewed in the United States on April 18, 2025 by JJ
Style: 0 dB 4 Sensors
Review Summary - Awesome I recently purchased the YoLink Hub and Water Sensor pack on Amazon and the YoLink 3/4 motorized water/gas valve shut off from their direct site. All products worked fantastically. I was not thrilled with the idea of yet another hub in my Smart Home but the reviews (and no availability of SmartThings water sensors) led me to try YL and I am so glad I did. I love this brand now: set up was faster than zwave/zigbee, works without internet, and flawless integration with Amazon's Alexa. 5 Stars hands down and another 5 for the future - make sure to follow them on FB. Below are some other things I would like to share. When to buy water sensors - Every time someone shares a wet story A couple of years ago, my cousin's house flooded after his girls filled the sink with water (washing their face like they down in the movies) and then left for school... He had to live at my parent's lake cottage for the winter (~3mo) in upstate NY. Family of 4, dog, and cat in a 2 bedroom ranch with no laundry. At that time, I decided that since their deductible was $500, I was going to spend that much on a solution: a dozen ST water sensors and a Dome bolt-on valve control. Every time I have a water issue, a close call, or hear a story about someone who had an issue - I buy a few more. The latest was a co-worker whose parents went to Florida for the winter. Apparently, a bird died in their HVAC exhaust pipe, slide down, and errored out the furnace (CO2 protection feature). Since they had no smart devices to warn them about the cold house, the pipes burst and no one knew. When they came back 3 weeks later... eww. That's when I found and joined the YoLink system! Use Cases - Start low in each room I am not a plumber or insurance claims agent: these are just my thoughts that work with my house. I first started out with 1 water sensor in each bathroom. I put them by the toilet with the thought that if a sink also had an issue, at some point it would make it out of the cabinet and onto the floor and get to the sensor. It won't help with small leaks that will just go through the cabinet and into the floor/ceiling etc, but it's a start since water damage can happen almost anywhere. You can always go back and add another to each room (see above "when to buy"). I had an issue where my hard water was leaving sediment in my washing machine's solenoid causing it to stay in the open position. We came home to a door-open front-end machine almost ready to spill over. Now we have a sensor in the laundry room. We had high water pressure in our house which was causing our on-demand tankless heater pressure relief valve to started to let out a steady stream. We had a sensor there to cut off the water and save the day. I now have a pressure regulator (WATTS) and water e-treat (WATTS) system! Speaking of which, not that I don't trust my plumbing work - but the areas I was working with, I put a kids snow sled under my work when I was done to collect any water and put a sensor in it. No leaks BTW! Speaking of the sled to collect water - I use decorative square planters to put my bedroom and living room humidifiers in during the Winter with a water bud in each. Last winter, the side of one of the humidifiers broke and messed up my living room hardwood floors. I use a shoe/boot tray for the cat's water fountain and a sensor just in case they knock it over. I actually do the same with my hot-water tank too - ensures it will hit the senor and buys a few minutes between the valve shutting, water leaving the system (pipes above), and someone to get there. Last Thoughts I am excited to build on the YoLink system, I plan on picking up an alarm and some of their other unique products coming out - smoke alarm, CO2 alarm, outdoor alarm, outdoor motion sensor, outdoor contact sensor, etc. Pretty exciting stuff. BTW, I was not paid in any way for this review, and I am not new to the smart home space - I use everything in my house Tuya, ST, LIFX, Hue (which sucks - Paul Hibbert is correct on that) so I am not just blown away with the novelty of this, I think its a great brand that has a lot of potential with the LoRa.
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Reviewed in the United States on March 29, 2021 by Bob Pagano 3 Bob Pagano 3
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