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Smart Water Control
FlowSmart All-in-One
Smart Ultrasonic Water Meter
NSF-Certified Drinking-Water-Safe Smart Water Meter — Automatic Shutoff, Real-Time Leak Detection, App Control, 10+ Year Battery


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Customer Reviews
Why people love our products
"Scan qr code, and bind. Can't make setup any. Easier!!! Many components to the ecosystem. Works hand in hand with sensors, for doors, temp. Humidity, motion, water leaks, etc. So versatile of ecosystem, reliability beyond any other! No specialized batteries in all units. They seem to have thought of everything!! Would give all products 6 stars if I could!
- John B.
"I ordered the hub, key fog, motion detectors, moisture detectors and sirens.
Great products! Easy to install, the app is well thought out and flexible and the range is unbelievable. As an AV integrator I've used a LOT of different "smart" products.
These are probably the best I've ever had the pleasure of installing."
- Fred F.
"Literally saved by thousands of dollars when it notified us of a sewer backup in our basement."
- Donald M.
"These are my only smart home devices that out of all, always work. There have never been any issues. No connectivity issues, no update issues, no battery issues. If you use smart home devices, you know how annoying they can be. YoLink just works, all the time. It’s amazing"
- Marsiv
"These devices are brilliant. They are (by far) the least expensive brand of home automation products, have a MUCH longer range than all others, and simply work perfect - all of the time.
- Rick Z.
"Saved my freezer multiple times in the last six months. I'm absolutely thrilled with this product".
- S. Reesx
"Yolink products are the best. I never thought I would buy into a Hub system but that is exactly what makes this product work so well. Device to device paring is what makes there family of devices work so well even without internet or wifi access. Very accurate with nice graphical data in the app to monitor trends"
- Richard
Featured In
- Wired
- This Old House
- Best Reviews
- TurboFuture
Best for Large Properties Water Sensor
“From the simple setup to the swift and reliable alerts, YoLink’s water leak sensors impressed.”

Best Whole-House System
“The system is Bluetooth-compatible with iOS and Android, syncs with IFTTT, and works with smart home arrays like Amazon Alexa, Apple Homekit, and Google Assistant.”

Top Pick Best Smart Security Systemes
“Comprehensive set of door and window sensors at an affordable price.”

“[YoLink] utilizes a low radio frequency protocol (LoRa) to communicate. LoRa signals can penetrate greater distances than WiFi, and this system reduces the associated workload of routers. Every sensor I tested was of good quality”

Why is YoLink the Smart Choice?
Simple, Quick DIY Installation
Most Products Two Year Warranty
Hassle-Free Returns, Free U.S. Shipping for Orders $50+
Lifetime Support, U.S. Phone Support Available
Let customers speak for us
from 2061 reviewsThe flex fob was part of our solution to making our 1996 garage door openers work again. Clipped it to my visor and everything works with a simple button press now. I really appreciated how there was a direct connection to the garage opener in addition to being able to work over the hub network.
I installed this on one of my pool gate. As soon as the gate opens I get a notice on my phone. “Gate is open”. It also lets you set a reminder that the gate is still open. You choose the time span. It’s really cool that you could add a siren to the gate also; if need . I didn’t do that yet. I will be adding more sensors to the other two gates. Easy to install. I highly recommend this sensor if you have pool gates or any other sensitive doors and gates you want monitored.
DATA LOG FEATURE IS GREAT!
I bought my first one just to see if it really would work in my off grid vacation property. I have two fridges so after seeing how well they performed I ordered three more. They are all connected to one hub and now I could keep track of the temperature in the two refrigerator freezers on the property. To let you know how they perform I have sense ordered three additional thermostats and another hub for my refrigerator freezer and freezer in my main house. Yes I think they’re great products
in my main house. It’s all about peace of mind.
I have my well fill my 6000 gallon tank each night for 10 minutes every hour from 10 PM until 6 AM. (don't want to run the well hole dry). I have an electric solenoid valve that controls the tank fill. It's timed with a Yolink outdoor Plug Schedule.
The tank has a float that cuts off the well fill valve when the tank is full. That works great. So, as a backup, I put the Sensor 3 Probe in a 45º conduit fitting so any tank condensation wouldn't drip on the sensor. Then mounted the conduit/sensor through a hole near the top of the tank at a location just above where the float turns off the well-fill valve.
So, if for some reason, the float hangs up or doesn't work, the sensor will turn off the fill valve.
The Yolink Automation settings are settings are:
"When" Leak Sensor has Water Leak Alert, "Then" Turn off Tank Fill Plug/Valve.
Alarm Strategy: Default.
Alert Interval: 1 minute.
Delayed Alarm: 2 seconds.
So, with those settings, if water in the tank touches the Leak Sensor, the tank fill valve will turn off. And when the Plug/Valve tries to turn the fill water valve back on again and the sensor is still wet, the valve will turn off in less than one minute (the minimum time available for Alert Interval).
And, it mounts from the outside of the tank so I don't have to try to get my arm inside the tank access hole cover to do anything.
I guess this could be used instead of a float but I like the redundancy of the float and Leak Detector.
Works really good
Awesome I love them. I wish I would have done it years ago.
Play plug and play. Automatically integrated. Just stick it up on the door.
Still learning about all the tricks it can do.
We started using the YoLink system after several people we knew had their houses destroyed by water leaks that happened when they weren't home. They are simple and easy to set up. I love the 10-pack because we have a lot of water sources in the house.
Easy to set up and works as designed
I added two more of the Yolink switches to my hub, dimmer, and flex switch. The system works together flawlessly. The switches that have additional programmable buttons (main, and switches 1, 2) are easily programmed with the Yosmart app. Plug and Play when you plug the hub into your existing home internet access system. Highly recommended!
This kit arrived today and, as I've come to expect from Yolink products, it was amazingly easy to configure. Unboxing to working sensor and controller took all of about 15 minutes, and it worked exactly as advertised.