Device profile · Specifications & compatibility
YoLink Water Leak Sensor 1
YoLink · Water Leak Sensors · Model YS7903
Other Amazon stores
We may earn a commission from qualifying purchases through these links.
Prices and stock change often on Amazon, so we do not show them here. The button opens the current listing.
- YoLink Water Leak Sensor 1 lists Water Leak Alerts; Home Assistant; Battery Life: 5 years.
- Verify the notification path and any controller dependency.
- An alert alone does not close a water valve.
Browse more from YoLink or explore all water leak sensors in our catalog.
- Recorded year
- 2020
- Recorded warranty
- 2 years
- Dimensions
- 62 x 62 x 24.5 mm
- Weight
- 80g
The details that shape your choice
YoLink Water Leak Sensor 1 Quick Features
Start with these specifications, then check the full details and conditions below.
Make the differences clear
Which device fits your setup?
Choose another model to compare features, connections and requirements side by side.
From specification to decision
YoLink Water Leak Sensor 1: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
Water-leak alerts are recorded as a supported monitoring event. Verify the notification path and any controller dependency. An alert alone does not close a water valve. App, email and SMS alerts
View Water Leak Alerts details →A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant details →Low-battery alerts are recorded, providing a maintenance notification to verify in the chosen platform. Check the alert destination and how disconnected-device status is handled.
View Low Battery Alerts details →
What to consider
A sensing cable is listed as unavailable; plan placement around the supported sensing points.
View Sensor Cable details →An on-device audible alert is listed as unavailable; verify the remote alert path. Silent sensor, a SpeakerHub or YoLink siren adds audible alerts
View On Device Alert Sound details →Matter is listed as unsupported; check another documented integration if Matter is essential to your setup.
View Matter details →
Questions About YoLink Water Leak Sensor 1
Does YoLink Water Leak Sensor 1 support a water-sensing cable?
No, according to the listed specifications. Check whether the cable is included, the maximum length and the areas it can cover.
View Sensor Cable specifications →Does YoLink Water Leak Sensor 1 sound an alert on the device?
No, according to the listed specifications. Check power requirements and whether the alert works independently of network connectivity. Silent sensor, a SpeakerHub or YoLink siren adds audible alerts
View On Device Alert Sound specifications →Does YoLink Water Leak Sensor 1 report water-leak alerts?
Yes, according to the listed specifications. Verify the notification path and any controller dependency. An alert alone does not close a water valve. App, email and SMS alerts
View Water Leak Alerts specifications →Does YoLink Water Leak Sensor 1 support Matter?
No, according to the listed specifications. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.
View Matter specifications →Does YoLink Water Leak Sensor 1 work with Home Assistant?
Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant specifications →Explore the full picture
YoLink Water Leak Sensor 1 Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
0 of 28 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →
Included Accessories1 fields
| Sensor Cable | No |
|---|
Features3 fields
| On Device Alert Sound | NoDetails & conditionsSilent sensor, a SpeakerHub or YoLink siren adds audible alerts |
|---|---|
| On Device Alert Light | YesDetails & conditionsMulti-color status LED |
| Automations | YesDetails & conditionsControl-D2D triggers YoLink sirens or shutoff valves directly, even with no internet |
Alerts5 fields
| Water Leak Alerts | YesDetails & conditionsApp, email and SMS alerts |
|---|---|
| Temperature Alerts | No |
| Freeze Temperature Alerts | No |
| Low Battery Alerts | Yes |
| Tamper Alerts | No |
Connectivity7 fields
| 2.4 GHz Wi-Fi | No |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | No |
| Z Wave | No |
| Zigbee | No |
| Thread | No |
| Other | LoRa (YoLink hub required) |
Integrations6 fields
| Google Home | No |
|---|---|
| Alexa | NoDetails & conditionsAlexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either |
| Apple Home | No |
| SmartThings | No |
| Home Assistant | Yes |
| Matter | No |
Power3 fields
| Wired | No |
|---|---|
| Battery Type | 2x AAA |
| Battery Life | 5 years |
Sensors3 fields
| Water Leak | Yes |
|---|---|
| Temperature | No |
| Tilt | No |
How this device compares
YoLink Water Leak Sensor 1 vs Other Similar Models
Statistical context from 34 water leak sensors in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
On Device Alert Light: 16 of 32 known answers are Yes
Features: 50% among explicit Yes/No answers; 2 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Automations: 27 of 31 known answers are Yes
Features: 87% among explicit Yes/No answers; 3 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Low Battery Alerts: 19 of 19 known answers are Yes
Alerts: 100% among explicit Yes/No answers; 15 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
2 of 34 models are from YoLink
Counts water leak sensors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare YoLink Water Leak Sensor 1 vs Similar Water Leak Sensors
See how YoLink Water Leak Sensor 1 stacks up against other water leak sensors in this catalog. Compare specifications, compatibility and pricing.
Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.