# YoLink water leak and level sensors

*YoLink / 10 models*

> YoLink sells Water Leak Sensors 1 through 6, a MoveAlert variant, a float-switch level sensor and two LeakStop detectors. The sensors report to a YoLink hub. The newer generations add sounders, low-temperature alerts, probe ropes and lithium batteries.

- Canonical page: https://smarthomecanon.com/lines/yolink-water-leak-sensors
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [YoLink](https://smarthomecanon.com/brands/yolink) |
| Models | 10 |
| Current | 10 |

## Currently sold

**YoLink water leak and level sensors: models on sale now**

| Model | Series | Released |
| --- | --- | --- |
| [YoLink Water Leak Sensor 1](https://smarthomecanon.com/devices/yolink-water-leak-sensor-1) | Water Leak Sensor 1 | unknown |
| [YoLink Water Leak Sensor 2](https://smarthomecanon.com/devices/yolink-water-leak-sensor-2) | Water Leak Sensor 2 | unknown |
| [YoLink Water Leak Sensor 3](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-water-leak-sensor-3) | Water Leak Sensor 3 | unknown |
| [YoLink Water Leak Sensor 4](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4) | Water Leak Sensor 4 | unknown |
| [YoLink Water Leak Sensor 4 MoveAlert](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4-movealert) | Water Leak Sensor 4 MoveAlert | unknown |
| [YoLink Water Leak Sensor 5](https://smarthomecanon.com/devices/yolink-water-leak-sensor-5) | Water Leak Sensor 5 | unknown |
| [YoLink Water Leak Sensor 6](https://smarthomecanon.com/devices/yolink-water-leak-sensor-6) | Water Leak Sensor 6 | unknown |
| [YoLink Water Level Sensor with Float Switch](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-water-level-sensor-with-float-switch) | Water Level Sensor with Float Switch | unknown |
| [YoLink LeakStop 1-Channel Leak Detector](https://smarthomecanon.com/devices/yolink-leakstop-1-channel-leak-detector) | LeakStop 1-Channel Leak Detector | unknown |
| [YoLink LeakStop 2-Channel Leak Detector](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-leakstop-2-channel-leak-detector) | LeakStop 2-Channel Leak Detector | unknown |

## Lineup

**YoLink water leak and level sensors: every model**

| Model | Model numbers | Status | Type | Power | Location | Key spec |
| --- | --- | --- | --- | --- | --- | --- |
| [YoLink Water Leak Sensor 1](https://smarthomecanon.com/devices/yolink-water-leak-sensor-1) | YS7903 | Current[^1] | Puck leak sensor[^1] | 2 AAA batteries[^1] | Indoor only[^1] | IP68 housing; probes on top and bottom[^1] |
| [YoLink Water Leak Sensor 2](https://smarthomecanon.com/devices/yolink-water-leak-sensor-2) |  | Current[^2] | Leak and level sensor with probe cable and siren[^2] | 2 AAA batteries[^2] | Indoor only[^2] | 4.2 ft probe cable, extendable to 10 ft[^2] |
| [YoLink Water Leak Sensor 3](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-water-leak-sensor-3) |  | Current[^3] | Leak sensor with probe cable and sounder[^3] | 2 AAA batteries[^3] | unknown | Probe cable with integral sounder[^3] |
| [YoLink Water Leak Sensor 4](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4) | YS7906 | Current[^4] | Puck leak sensor with sounder[^4] | 2 AAA batteries[^4] | unknown | 105 dB sounder; IP66 housing; low-temperature alerts[^4] |
| [YoLink Water Leak Sensor 4 MoveAlert](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4-movealert) | YS7916 | Current[^5] | Puck leak sensor with sounder and removal detection[^5] | 2 AAA batteries[^5] | unknown | 105 dB sounder; low-temperature alerts; detects removal[^5] |
| [YoLink Water Leak Sensor 5](https://smarthomecanon.com/devices/yolink-water-leak-sensor-5) | YS7986 | Current[^6] | Leak sensor with three probe groups and alarm[^6] | 2 AA lithium batteries (preinstalled), up to 12 years[^6] | Indoor; IP67[^6] | 110 dB alarm[^6] |
| [YoLink Water Leak Sensor 6](https://smarthomecanon.com/devices/yolink-water-leak-sensor-6) | YS7984 | Current[^7] | Leak sensor with braided sensing rope[^7] | 2 AA lithium batteries (preinstalled), up to 10 years[^7] | Indoor sensor body; waterproof rope[^7] | 11.5 ft sensing rope[^7] |
| [YoLink Water Level Sensor with Float Switch](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-water-level-sensor-with-float-switch) |  | Current[^8] | Water level sensor with float switch and siren[^8] | 2 AAA batteries[^8] | Indoor only[^8] | Leak detection and level monitoring modes[^8] |
| [YoLink LeakStop 1-Channel Leak Detector](https://smarthomecanon.com/devices/yolink-leakstop-1-channel-leak-detector) | YS5009 | Current[^9] | Running-water detector (1 channel)[^9] | unknown | unknown | Tracks daily water use and flush counts[^9] |
| [YoLink LeakStop 2-Channel Leak Detector](https://smarthomecanon.com/lines/yolink-water-leak-sensors#yolink-leakstop-2-channel-leak-detector) | YS5029 | Current[^10] | Running-water detector (2 channels)[^10] | unknown | unknown | Tracks daily water use and flush counts[^10] |

## Related pages

- [YoLink](https://smarthomecanon.com/brands/yolink) (brand)
- [YoLink Water Leak Sensor 1](https://smarthomecanon.com/devices/yolink-water-leak-sensor-1) (device)
- [YoLink Water Leak Sensor 2](https://smarthomecanon.com/devices/yolink-water-leak-sensor-2) (device)
- [YoLink Water Leak Sensor 4](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4) (device)
- [YoLink Water Leak Sensor 4 MoveAlert](https://smarthomecanon.com/devices/yolink-water-leak-sensor-4-movealert) (device)
- [YoLink Water Leak Sensor 5](https://smarthomecanon.com/devices/yolink-water-leak-sensor-5) (device)
- [YoLink Water Leak Sensor 6](https://smarthomecanon.com/devices/yolink-water-leak-sensor-6) (device)
- [YoLink LeakStop 1-Channel Leak Detector](https://smarthomecanon.com/devices/yolink-leakstop-1-channel-leak-detector) (device)

## Sources

[^1]: YoLink Water Leak Sensor 1 - YoLink. https://shop.yosmart.com/products/ys7903 (manufacturer, checked 2026-10-20)
[^2]: YoLink Water Leak Sensor 2 - YoLink. https://shop.yosmart.com/products/ys7904g (manufacturer, checked 2026-10-20)
[^3]: YoLink Water Leak Sensor 3 - YoLink. https://shop.yosmart.com/products/ys7904w-1 (manufacturer, checked 2026-10-20)
[^4]: YoLink Water Leak Sensor 4 - YoLink. https://shop.yosmart.com/products/ys7906 (manufacturer, checked 2026-10-20)
[^5]: YoLink Water Leak Sensor 4 MoveAlert - YoLink. https://shop.yosmart.com/products/ys7916 (manufacturer, checked 2026-10-20)
[^6]: YoLink Water Leak Sensor 5 - YoLink. https://shop.yosmart.com/products/ys7986 (manufacturer, checked 2026-10-20)
[^7]: YoLink Water Leak Sensor 6 - YoLink. https://shop.yosmart.com/products/ys7984 (manufacturer, checked 2026-10-20)
[^8]: YoLink Water Level Sensor with Float Switch - YoLink. https://shop.yosmart.com/products/ys7904f (manufacturer, checked 2026-10-20)
[^9]: YoLink LeakStop 1-Channel Leak Detector - YoLink. https://shop.yosmart.com/products/ys5009 (manufacturer, checked 2026-10-20)
[^10]: YoLink LeakStop 2-Channel Leak Detector - YoLink. https://shop.yosmart.com/products/ys5029 (manufacturer, checked 2026-10-20)