







💧 Stay ahead of the flood—smart water sensing that never quits!
The YoLink Water Level Sensor is a battery-powered, wall-mountable device that uses patented LoRa wireless technology for ultra-long-range, reliable water level monitoring. It installs effortlessly via a QR-code scan and operates independently of WiFi or power outages through device-to-device pairing. Ideal for proactive water management, it requires a YoLink Hub to function and delivers real-time alerts to keep your space safe and dry.






| ASIN | B0C3KXCY8B |
| Battery Description | Alkaline |
| Best Sellers Rank | #379,504 in Home Improvement ( See Top 100 in Home Improvement ) #567 in Water Detectors |
| Control Method | App |
| Country of Origin | China |
| Generic Name | Water Level Sensor |
| Included Components | Detector |
| Item Dimensions LxWxH | 6.2 x 6.2 x 2 Centimeters |
| Item Weight | 240 g |
| Item model number | YS7904 |
| Manufacturer | YOSMART |
| Maximum Range | 1320 Feet |
| Mounting Type | Wall Mount |
| Net Quantity | 1.0 Count |
| Noise Level | 105 Decibels |
| Number of Batteries | 2 AAA batteries required. (included) |
| Product Dimensions | 6.2 x 6.2 x 2.03 cm; 240 g |
| Sensor Technology | Sound Sensor |
| UPC | 810121540848 810121540565 |
K**.
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!
M**M
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.
D**E
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.
M**Z
Great sensor
B**R
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.
Trustpilot
1 month ago
1 month ago