Device profile · Specifications & compatibility
Third Reality Smart Water Leak Sensor WL2
Third Reality · Water Leak Sensors · Model P1WLSD1
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- Third Reality Smart Water Leak Sensor WL2 lists Water Leak Alerts; Home Assistant; Battery Life: 3 years.
- Verify the notification path and any controller dependency.
- An alert alone does not close a water valve.
Browse more from Third Reality or explore all water leak sensors in our catalog.
- Recorded year
- 2026
- Recorded warranty
- ?
- Dimensions
- 83.5 x 55 x 21.5 mm
- Weight
- ?
The details that shape your choice
Third Reality Smart Water Leak Sensor WL2 Quick Features
Start with these specifications, then check the full details and conditions below.
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From specification to decision
Third Reality Smart Water Leak Sensor WL2: 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. Real-time app notifications through the Zigbee platform the sensor is paired with.
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. THIRDREALITY lists Home Assistant (ZHA and Zigbee2MQTT) as a supported platform, and Zigbee2MQTT ships a converter for this exact model (3RWS0218Z).
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. The WL2 uses leak sensing metal dots on its own body and detects drips and standing water without a separate probe cable.
View Sensor Cable details →An on-device audible alert is listed as unavailable; verify the remote alert path. THIRDREALITY states the WL2 has no siren: unlike its previous Zigbee water leak sensor, it is built for users who prefer app alerts and automations over an onboard audible alarm.
View On Device Alert Sound details →Tamper alerts are recorded as unavailable.
View Tamper Alerts details →
Still needs verification
Confirm these details if they matter to your setup.
Questions About Third Reality Smart Water Leak Sensor WL2
Does Third Reality Smart Water Leak Sensor WL2 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. The WL2 uses leak sensing metal dots on its own body and detects drips and standing water without a separate probe cable.
View Sensor Cable specifications →Does Third Reality Smart Water Leak Sensor WL2 sound an alert on the device?
No, according to the listed specifications. Check power requirements and whether the alert works independently of network connectivity. THIRDREALITY states the WL2 has no siren: unlike its previous Zigbee water leak sensor, it is built for users who prefer app alerts and automations over an onboard audible alarm.
View On Device Alert Sound specifications →Does Third Reality Smart Water Leak Sensor WL2 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. Real-time app notifications through the Zigbee platform the sensor is paired with.
View Water Leak Alerts specifications →Does Third Reality Smart Water Leak Sensor WL2 support Matter?
Matter is listed as “Smart Bridge MZ1 required”. The stated condition applies to this feature. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity. The WL2 is a Zigbee device, not a Matter one: THIRDREALITY's Smart Bridge MZ1 is a Zigbee to Matter bridge, and the WL2 product page names it as the way to publish the sensor to Matter controllers such as Apple Home and Google Home.
View Matter specifications →Does Third Reality Smart Water Leak Sensor WL2 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. THIRDREALITY lists Home Assistant (ZHA and Zigbee2MQTT) as a supported platform, and Zigbee2MQTT ships a converter for this exact model (3RWS0218Z).
View Home Assistant specifications →Explore the full picture
Third Reality Smart Water Leak Sensor WL2 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 | NoDetails & conditionsThe WL2 uses leak sensing metal dots on its own body and detects drips and standing water without a separate probe cable. |
|---|
Features3 fields
| On Device Alert Sound | NoDetails & conditionsTHIRDREALITY states the WL2 has no siren: unlike its previous Zigbee water leak sensor, it is built for users who prefer app alerts and automations over an onboard audible alarm. |
|---|---|
| On Device Alert Light | No |
| Automations | Yes |
Alerts5 fields
| Water Leak Alerts | YesDetails & conditionsReal-time app notifications through the Zigbee platform the sensor is paired with. |
|---|---|
| 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 | Zigbee Hub requiredDetails & conditionsZigbee 3.0 end device: it needs a Zigbee coordinator such as a SmartThings, Aeotec, Hubitat, Homey or Third Reality hub, or an Echo device with a built-in Zigbee radio. |
| Thread | No |
| Other | No |
Integrations6 fields
| Google Home | Smart Bridge MZ1 requiredDetails & conditionsTHIRDREALITY names its Smart Bridge MZ1 (sold separately) as the way to bring the WL2 into Google Home. |
|---|---|
| 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 | Smart Bridge MZ1 requiredDetails & conditionsTHIRDREALITY names its Smart Bridge MZ1 (sold separately) as the way to bring the WL2 into Apple Home. Apple Home has no Zigbee radio of its own. |
| SmartThings | YesDetails & conditionsTHIRDREALITY lists SmartThings (2015/2018) hubs and the Aeotec Smart Home Hub among the Zigbee coordinators the WL2 pairs with. |
| Home Assistant | YesDetails & conditionsTHIRDREALITY lists Home Assistant (ZHA and Zigbee2MQTT) as a supported platform, and Zigbee2MQTT ships a converter for this exact model (3RWS0218Z). |
| Matter | Smart Bridge MZ1 requiredDetails & conditionsThe WL2 is a Zigbee device, not a Matter one: THIRDREALITY's Smart Bridge MZ1 is a Zigbee to Matter bridge, and the WL2 product page names it as the way to publish the sensor to Matter controllers such as Apple Home and Google Home. |
Power3 fields
| Wired | No |
|---|---|
| Battery Type | 2x AAA |
| Battery Life | 3 years |
Sensors3 fields
| Water Leak | YesDetails & conditionsIntegrated drip and leak detection, so it reports both slow drips and standing water. |
|---|---|
| Temperature | No |
| Tilt | No |
How this device compares
Third Reality Smart Water Leak Sensor WL2 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
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.
Recorded feature coverage
Water Leak Alerts: 34 of 34 known answers are Yes
Alerts: 100% among explicit Yes/No answers; 0 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 Third Reality
Counts water leak sensors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare Third Reality Smart Water Leak Sensor WL2 vs Similar Water Leak Sensors
See how Third Reality Smart Water Leak Sensor WL2 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.