YoLink LoRa Smart Water Level Monitoring Sensor, Wireless Battery-Powered Float Switch Alarm, Sump Pump Alarm, AC Condensate Overflow, Tank Level, Toilet Leak Sensor, 105dB Siren, YoLink Hub Required

First, it’s important to know this is just the same “Water Sensor 2” sensor as YoLink’s rope-style water leak sensor and their remote cable style water leak sensor. During setup, it gets configured as their remote cable sensor, but the alerts are simply inverted, so that it alerts when “dry” rather than “wet”.Where this is important is in how the sensor communicates and behaves. Because the sensor is, at its core, a leak sensor, it tends to get very chatty if the body of water you are monitoring for level with this sensor has any chop, as in, say, a swimming pool (even one that’s not actively in use.) I didn’t mind this, as I turned off the alerts and was simply intending to use this with a Home Assistant automation to selectively trigger and stop an auto-pool-refill function. However, it seems like this extreme chattiness may be having other adverse consequences in how the device interacts with YoLink’s platform. I don’t have confirmation yet, but I suspect my device’s updates are being rate-limited by the upstream servers. This unfortunately results in the sensor becoming “stuck” in either the wet or dry reading, regardless of what the sensor’s float switch position actually is. And when the rate limiting (or whatever the problem is) finally resolves, if the float switch doesn’t again cross over the trigger point, the sensor will remain in whatever erroneous position. This has caused me to overfill my pool a couple times as I did not realize the issue was occurring.So, if you have a glass-smooth water surface, such as in a closed reservoir or a small indoor aquarium, where the float switch is reliably either on or off, this may work for you. But for anything where the sensor may tend to cross back and forth over the trigger point cintinuously, such as with any sort of automations, this may not be the best solution.I am currently in the process of working with YoLink support on the issues I’m having, and I will update this review with the results. To their credit, they are extremely helpful. Already they have sent me a replacement sensor to see if that would correct the issue (but it did not). I am now awaiting their next response after giving them detailed feedback.Update: within a week of my previous review, YoLink support informed me of a new updated firmware they had available that would allow a delayed reporting interval for water level alerts. In the computer programming world, you might call this a “debounce” capability. With this firmware update, I can specify how long the sensor must continuously register a water exhausted warning internally before reporting it in an upstream alert to the servers. After applying this update, and some back and forth with support regarding some behaviors that still seemed to not be quite right, I can now say it seems that the sensor is performing as intended for my needs in monitoring the water level in my outdoor swimming pool. I am of course still closely monitoring it to make sure it doesn’t overfill my pool again, but I am cautiously optimistic that YoLink has, with this update, corrected the issue I was having.I am really impressed with Yolink’s responsiveness and willingness to help me find solutions here. I don’t know if the minor firmware update they made available is something they had in the works already, or something they added at my request, as it was very much aligned to a suggestion I made that might alleviate the issue. Either way, it was rolled out seemingly in response to my troubles in a very short order. Kudos to them!I am raising my review rating to five stars (previously 3 stars) for now. Assuming the sensor continues to perform as it is now, the 5 star rating will be deserved. If not, I will return again with an update.

I use them in a flood and drain hydroponic system to ensure that none of the containers can overflow if roots are blocking the drain. So I do the local binding to a yolink switch that powers the water pump. Overflow -> alarm, SMS message and stop the pump. If internet is down, this will stop the switch on its own.

Up front it seams great but only time will tell .... that and if there is a sump pump failure, it notifies me and saves me a flooded basement.----------------------------------------Oh... here are a few details about Yolink sensors and hub you really do need to know.All yolink sensors of any type communicate with the hub and the hub communicates with the yolink server and the server communicates with your cell phone and the yolink app.You might think this is bad but I actually love it. Here is why.You link can send you a text or an email if a sensor is tripped. But if that text or email winds up on your phone how do you know it got there? Does your phone make some special beep when a yolink email comes in or a special sound when a yolink text comes in? As for the text I do know how to customize my text to make a special noise but I don't bother.Why don't I bother? Because I set the yolink app to "app only notification".Well ladies and gentlemen.... I found a notification reader app for my phone. It reads yolink notification out loud. Not text, not email but app notifications from the yolink app.It can be set to only read notification from any certain app you want and not from apps you don't want.Get this... it has a time delineation setting.... LOL your thinking WHAT? No it does not delineate time...It delineates THE time the app reads notifications out loud.Here is how I set it, I have it set so the app reader only reads yolink notifications at night. Not during the day time. My wife hates hearing it during the day and evening. During these times the notification makes a small sound. I know to check the notification. My wife can't hear it.So get all that? Yolink could have an "in app reader" or "announcement" that could simply say out loud what sensor just got tripped. But yolink wants you to pay them for a text service that can send a lot of text to you.NO... you don't need that.Install the notification reader, it is called "voice notify" version 1.3.1, it is awesome.It truly completes the Yolink system and makes it what it truly should be. A way for your phone to tell you what door or window or yolink sensor just got tripped and it can happen while you are in your easy chair at home, or, in an airport on another continent on the other side of the planet.~

Perfect solution for sump pump level sensing. Make sure to buy the hub with it if you want alarm on your phone too.

I'm sure their lawyers have scoured over the text used for this product to make sure it's 'technically' not false advertising. For anyone else, you should know that this is NOT a LoRa device, and is in fact completely and utterly incompatible with LoRa and LoRaWAN.It's a completely, 100% proprietary protocol that vendor locks you in to YoLink. In this case, it's particularly dishonest to call it LoRa-based, since the entire point of LoRa is building a mesh network.

great

After having our sump pit over flow over night when the pumps didn’t work for reasons unknown, my husband and I decided that we needed to get an alarm to know if the sump pit was getting too full. We have other YoLink products that we are happy with. We love that we have the app and can see the status of everything right there. We installed the YoLink sump pit water sensor, and it has brought us peace of mind that we will be warned before the sump pit over flows and floods the basement. With the storms, we’ve recent received a lot of rain, and our sump pumps have been work horses. I was worried that the pumps would overheat and give out (even though they aren’t old) because they were pumping so frequently. This alarm helped put me at ease that I would have a heads up to plug in the back up pump if things went south. Very easy to set up.