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

I bought this to monitor the water level in my Christmas tree stand, and it’s been perfect for that. It alerts me when the water gets low so I can refill it before the tree dries out—no more needles all over the floor. Setup was easy, alerts are reliable, and the LoRa range works great even with the tree not near my router. For a non-traditional use case, it’s worked flawlessly. Simple solution that actually does what it’s supposed to do.

Great sensor

This and the D2D connection to the EVO shutoff valve is the way to go. This has already proven itself by immediately shutting off our water at 2am when our sump pump failed.

I added this to my main condensate line to act as an early warning of the drain slowing down and requiring cleaning. It’s lower that the cutoff float so I can get it before the AC cuts off in the mid of FL summers. Only complaint is that it’s not quite a plug and play substitute for a standard float. It’s a bit bigger, so the float ring is a bit too large for some drains and the shank does not screw into an ss2 cap. I swapped it out with the float ring from a standard overflow switch and sealed it with a metal washer and some rubber washers. It works like a charm.

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've had two of these monitors. both failed within a a couple of weeks. For the first one, the control unit became we, so that's my fault, however the second one the sensor failed in the alarm position o wewithin two weeks. Most YoLink products are very durable and reliable - BUT this one is not reliable. Needs a redesign to make it more durable, especially in damp to wet environments (for which it is advertised for). Still looking for a solution to monitor water level with LoRa connectivity. I clearly don't recommend this product as is not durable or reliable.

Bought one to put in a water basin to trigger the shutoff of water pump once a certain depth of water is reached. Works great to turn off pump, but I have had to replace the batteries 3 times in the past 6 weeks.

Used it for my Christmas tree water level. Luckily there is an easy way to switch the alert water vs no water “” . First year of not having to almost lay down and army crawl to find out the tree doesn’t need water. I zip tied it to a branch and let it sit just above the 2/3 point in the tree stand. I’d buy again.

No se puede configurar por tanto no se puede vincular con la app

Well made and easily installed. Works effectively and support service professional if required.

This has been a great product for us. As we don’t have an auto filler for the pool, I was able to use this to warn if the pool level was low so we can fill the pool when needed. Using Alexa, we automated a routine to automatically turn the hose on when the water level is low. Also, I put the unit inside an electrical enclosure and drilled out a small hole for the level sensor. This keeps it protected from the elements.

Wow! Love this brand. I already have some door sensors to prevent the kids sneaking out at night, and now added a high level sump pump sensor. Works like a charm, texts and alerts on my phone and the unit itself beeps in the basement. I would definitely recommend this product for many different applications.

Parfait pour avoir la tête tranquille et être averti en cas de panne de la pompe ! Je n'ai pas eu de problème avec ma pompe depuis l'achat, mais lors de mes tests les avertissements fonctionnaient bien!