The Smart Device Compare comparison

Third Reality Smart Water Leak Sensor WL2 vs YoLink Water Leak Sensor 4

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Third Reality Smart Water Leak Sensor WL2 and YoLink Water Leak Sensor 4

A summary of selected recorded differences between these water leak sensors. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Freeze Temperature Alerts (alerts): Third Reality Smart Water Leak Sensor WL2 — No; YoLink Water Leak Sensor 4 — Yes.
On Device Alert Light (features): Third Reality Smart Water Leak Sensor WL2 — No; YoLink Water Leak Sensor 4 — Yes.
On Device Alert Sound (features): Third Reality Smart Water Leak Sensor WL2 — No (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.); YoLink Water Leak Sensor 4 — Yes (105dB).
SmartThings (integrations): Third Reality Smart Water Leak Sensor WL2 — Yes (THIRDREALITY lists SmartThings (2015/2018) hubs and the Aeotec Smart Home Hub among the Zigbee coordinators the WL2 pairs with.); YoLink Water Leak Sensor 4 — No.

Specifications to check side by side

Temperature Alerts (alerts): Third Reality Smart Water Leak Sensor WL2 — No; YoLink Water Leak Sensor 4 — Low Temperatures.
Other (connectivity): Third Reality Smart Water Leak Sensor WL2 — No; YoLink Water Leak Sensor 4 — LoRa (YoLink hub required).
Zigbee (connectivity): Third Reality Smart Water Leak Sensor WL2 — Zigbee Hub required (Zigbee 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.); YoLink Water Leak Sensor 4 — No.
Apple Home (integrations): Third Reality Smart Water Leak Sensor WL2 — Smart Bridge MZ1 required (THIRDREALITY 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.); YoLink Water Leak Sensor 4 — No.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Third Reality

Third Reality Smart Water Leak Sensor WL2

Last updated October 2026

View full device profile

Option 2 · YoLink

YoLink Water Leak Sensor 4

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

12differences with recorded values for every device

0rows with missing or unspecified information

Consider your setup

Apple Home

Third Reality Smart Water Leak Sensor WL2Smart Bridge MZ1 required
YoLink Water Leak Sensor 4No

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Third Reality Smart Water Leak Sensor WL2Smart Bridge MZ1 required
YoLink Water Leak Sensor 4No

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Consider your setup

Battery Life

Third Reality Smart Water Leak Sensor WL23 years
YoLink Water Leak Sensor 45 years

Compare the stated test conditions. Catalog battery figures alone do not predict runtime in your home.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 28 of 28 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Freeze Temperature Alerts

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: Yes

Low Battery Alerts

Third Reality Smart Water Leak Sensor WL2: Yes
YoLink Water Leak Sensor 4: Yes

Tamper Alerts

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Temperature Alerts

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: Low Temperatures

Water Leak Alerts

Third Reality Smart Water Leak Sensor WL2: Yes
Catalog note
Real-time app notifications through the Zigbee platform the sensor is paired with.
YoLink Water Leak Sensor 4: Yes

Connectivity

2.4 GHz Wi-Fi

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

5 GHz Wi-Fi

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Bluetooth

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Other

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: LoRa (YoLink hub required)

Thread

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Z Wave

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Zigbee

Third Reality Smart Water Leak Sensor WL2: Zigbee Hub required
Catalog note
Zigbee 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.
YoLink Water Leak Sensor 4: No

Features

Automations

Third Reality Smart Water Leak Sensor WL2: Yes
YoLink Water Leak Sensor 4: Yes

On Device Alert Light

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: Yes

On Device Alert Sound

Third Reality Smart Water Leak Sensor WL2: No
Catalog note
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.
YoLink Water Leak Sensor 4: Yes
Catalog note
105dB

Included Accessories

Sensor Cable

Third Reality Smart Water Leak Sensor WL2: No
Catalog note
The WL2 uses leak sensing metal dots on its own body and detects drips and standing water without a separate probe cable.
YoLink Water Leak Sensor 4: No

Integrations

Alexa

Third Reality Smart Water Leak Sensor WL2: No
Catalog note
Alexa 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
YoLink Water Leak Sensor 4: No
Catalog note
Alexa 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

Third Reality Smart Water Leak Sensor WL2: Smart Bridge MZ1 required
Catalog note
THIRDREALITY 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.
YoLink Water Leak Sensor 4: No

Google Home

Third Reality Smart Water Leak Sensor WL2: Smart Bridge MZ1 required
Catalog note
THIRDREALITY names its Smart Bridge MZ1 (sold separately) as the way to bring the WL2 into Google Home.
YoLink Water Leak Sensor 4: No

Home Assistant

Third Reality Smart Water Leak Sensor WL2: Yes
Catalog note
THIRDREALITY lists Home Assistant (ZHA and Zigbee2MQTT) as a supported platform, and Zigbee2MQTT ships a converter for this exact model (3RWS0218Z).
YoLink Water Leak Sensor 4: Yes

Matter

Third Reality Smart Water Leak Sensor WL2: Smart Bridge MZ1 required
Catalog note
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.
YoLink Water Leak Sensor 4: No

SmartThings

Third Reality Smart Water Leak Sensor WL2: Yes
Catalog note
THIRDREALITY lists SmartThings (2015/2018) hubs and the Aeotec Smart Home Hub among the Zigbee coordinators the WL2 pairs with.
YoLink Water Leak Sensor 4: No

Power

Battery Life

Third Reality Smart Water Leak Sensor WL2: 3 years
YoLink Water Leak Sensor 4: 5 years

Battery Type

Third Reality Smart Water Leak Sensor WL2: 2x AAA
YoLink Water Leak Sensor 4: 2x AAA

Wired

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Sensors

Temperature

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: Low Temperatures

Tilt

Third Reality Smart Water Leak Sensor WL2: No
YoLink Water Leak Sensor 4: No

Water Leak

Third Reality Smart Water Leak Sensor WL2: Yes
Catalog note
Integrated drip and leak detection, so it reports both slow drips and standing water.
YoLink Water Leak Sensor 4: Yes

Specifications for Third Reality Smart Water Leak Sensor WL2 versus YoLink Water Leak Sensor 4
Specification	Third Reality Smart Water Leak Sensor WL2	YoLink Water Leak Sensor 4
Alerts
Freeze Temperature Alerts	No	Yes
Low Battery Alerts	Yes	Yes
Tamper Alerts	No	No
Temperature Alerts	No	Low Temperatures
Water Leak Alerts	Yes Catalog note Real-time app notifications through the Zigbee platform the sensor is paired with.	Yes
Connectivity
2.4 GHz Wi-Fi	No	No
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Other	No	LoRa (YoLink hub required)
Thread	No	No
Z Wave	No	No
Zigbee	Zigbee Hub required Catalog note Zigbee 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.	No
Features
Automations	Yes	Yes
On Device Alert Light	No	Yes
On Device Alert Sound	No Catalog note 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.	Yes Catalog note 105dB
Included Accessories
Sensor Cable	No Catalog note The WL2 uses leak sensing metal dots on its own body and detects drips and standing water without a separate probe cable.	No
Integrations
Alexa	No Catalog note Alexa 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	No Catalog note Alexa 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 required Catalog note THIRDREALITY 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.	No
Google Home	Smart Bridge MZ1 required Catalog note THIRDREALITY names its Smart Bridge MZ1 (sold separately) as the way to bring the WL2 into Google Home.	No
Home Assistant	Yes Catalog note THIRDREALITY lists Home Assistant (ZHA and Zigbee2MQTT) as a supported platform, and Zigbee2MQTT ships a converter for this exact model (3RWS0218Z).	Yes
Matter	Smart Bridge MZ1 required Catalog note 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.	No
SmartThings	Yes Catalog note THIRDREALITY lists SmartThings (2015/2018) hubs and the Aeotec Smart Home Hub among the Zigbee coordinators the WL2 pairs with.	No
Power
Battery Life	3 years	5 years
Battery Type	2x AAA	2x AAA
Wired	No	No
Sensors
Temperature	No	Low Temperatures
Tilt	No	No
Water Leak	Yes Catalog note Integrated drip and leak detection, so it reports both slow drips and standing water.	Yes

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology