YoLink Water Leak Sensor 4 105 dB Alarm Kit: 6-Pack + Hub
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- Complete plug-and-play kit: hub plus Leak Sensor 4 units, each with a built-in 105 dB audible alarm for instant on-site alerts.
- Long-range LoRa: reliable coverage where Wi-Fi struggles (up to 2,034 ft. open-air); get app, email, and SMS/text alerts and name sensors by location.
- Works even without internet: with YoLink Control-D2D, sensors can directly trigger YoLink sirens or shutoff valves for local protection during outages.
- Low-maintenance power: each sensor uses 2 AAA batteries with up to 5 years typical battery life; easy replacement.
- Scalable IoT platform: one hub supports 300+ YoLink devices; part of a whole smart home/building ecosystem; hub options include standard Hub, SpeakerHub, and Cellular Hub.
- What’s Included: This package includes 1 YoLink Hub and 6 Sensors—7 items total. The “Number of Items: 7 Pack” refers to the seven individual products in the package, not seven sensors.
Estimated shipping
Select a product to estimate shipping.YoLink offers two leak sensors for different needs. Water Leak Sensor 1 is a quiet, discreet option that relies on phone notifications. Water Leak Sensor 4 adds a loud built-in siren , making it ideal for high-risk areas like basements or garages. Both connect to the YoLink Hub for instant alerts.
Runs on 2 AAA batteries (included) for up to 5 years of nonstop leak protection.
Stays connected up to 2,034 feet, even through walls and floors where WiFi fails .
Fully sealed design survives direct water contact, perfect for damp or flood-prone areas .
Receive instant app, SMS, or email alerts . Works with Alexa, IFTTT, Home Assistant, and more.
Power down? WiFi out? No problem . With YoLink’s D2D direct control, Leak Sensors continue to work seamlessly with YoLink Smart Valves and Water Meters, shutting off water the moment a leak is detected—no cloud, no delay, no worries .
1 YoLink Hub supports over 300 devices with long-range LoRa, ideal for large homes and even high-rise buildings . Reliable coverage where WiFi fails .
Manage multiple YoLink systems across properties with Readius , a cloud platform for centralized monitoring , alerts, and reporting at scale.
Product details
| Main Specification | |
|---|---|
| Manufacturer | Yosmart |
| Unit Count | 7 Count |
| Number of Batteries | 12 Aaa Batteries Required. (Included) |
| Item dimensions L x W x H | 3.5"L x 8"W x 6"H |
| Control Method | App |
| Brand | Yolink |
| UPC | 810121542040 |
| Number of Items | 7 |
| Power Source | Ac/Dc |
| Product Dimensions | 3.5"L x 8"W x 6"H |
| Compatible Devices | Over 300 devices |
| Maximum Range | 1000 Feet |
| Colour | White |
| Size | With Siren |
| Technical Details | |
| Battery Description | Aaa |
| Sensor Technology | Lora |
| Item details | |
| Model Number | YS1603+6YS7906 |
| Others | |
| Item Highlight | Works with Alexa or IP67 or Leak and Freeze Mobile App Alerts or Up to 5-Year Battery or LoRa YoLink Protocol Up to 2034 Feet |
| Product Type | Water Detectors & Alarms |
| Built-In Media | Batteries |
| Mfr Part Number | YS1603+6YS7906 |
| Audible Noise | 105 db |
| BuiltIn Media | Batteries |