
Option 1 · Meross
Meross Smart Multi-Function Water Leak Sensor
Catalog update date not recorded
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A summary of selected recorded differences between these water leak sensors. Check the full specification table below for details and conditions.
These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.
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Option 1 · Meross
Catalog update date not recorded
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What the catalog tells us
These counts describe the available data, not a quality score. More features do not automatically make a better device.
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Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.
Showing 28 of 28 rows. “Not recorded” does not mean “No”.
Freeze detection is supported.
Meross Smart Multi-Function Water Leak Sensor manufacturer product page →Requires an MSH450P hub. Battery life varies with settings and use.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Raises a freeze alert, and up to three conditions (leak, rain/drip, freeze or water level) can be combined before an alert fires.
Bluetooth Low Energy link to the Meross MSH450P hub; the sensor has no Wi-Fi radio of its own.
Through the MSH450P hub a leak, drip, freeze or water-level event can trigger other devices, for example switching off a smart plug feeding the washing machine or closing a smart valve.
A built-in alarm provides an audible alert.
Meross Smart Multi-Function Water Leak Sensor manufacturer product page →Requires an MSH450P hub. Battery life varies with settings and use.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Built-in buzzer rated up to 100 dB, with adjustable volume and a mute mode.
105dB
The kit includes a 1.5-metre probe.
Meross Smart Multi-Function Water Leak Sensor manufacturer product page →Requires an MSH450P hub. Battery life varies with settings and use.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Ships with a 1.5 m extension probe that reaches behind washing machines, under sinks or into tanks.
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
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
The MSH450P hub republishes the sensor over Matter, which is how it joins Apple Home.
Matter, and therefore Google Home, arrives through the Meross MSH450P hub that bridges the sensor.
Via Matter through the MSH450P hub; Home Assistant is a certified Matter controller and also reads Meross devices through the community meross_lan integration.
The sensor itself speaks Bluetooth Low Energy; the MSH450P hub carries it into Matter.
Via Matter through the MSH450P hub.
Advertised battery life is up to four years.
Meross Smart Multi-Function Water Leak Sensor manufacturer product page →Requires an MSH450P hub. Battery life varies with settings and use.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Detects freezing conditions to warn before pipes burst, rather than reporting ambient temperature readings.
The sensor detects water leaks.
Meross Smart Multi-Function Water Leak Sensor manufacturer product page →Requires an MSH450P hub. Battery life varies with settings and use.
Document check only; not a hands-on test or verification of every regional or firmware variant.
| Specification | Meross Smart Multi-Function Water Leak Sensor | YoLink Water Leak Sensor 4 |
|---|---|---|
| Alerts | ||
YesManufacturer sourceFreeze detection is supported. Meross Smart Multi-Function Water Leak Sensor manufacturer product page →
Requires an MSH450P hub. Battery life varies with settings and use. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteRaises a freeze alert, and up to three conditions (leak, rain/drip, freeze or water level) can be combined before an alert fires. | Yes | |
| Not recorded | Yes | |
| No | No | |
| No | Low Temperatures | |
| Yes | Yes | |
| Connectivity | ||
| No | No | |
| No | No | |
YesCatalog noteBluetooth Low Energy link to the Meross MSH450P hub; the sensor has no Wi-Fi radio of its own. | No | |
| No | LoRa (YoLink hub required) | |
| No | No | |
| No | No | |
| No | No | |
| Features | ||
YesCatalog noteThrough the MSH450P hub a leak, drip, freeze or water-level event can trigger other devices, for example switching off a smart plug feeding the washing machine or closing a smart valve. | Yes | |
| No | Yes | |
YesManufacturer sourceA built-in alarm provides an audible alert. Meross Smart Multi-Function Water Leak Sensor manufacturer product page →
Requires an MSH450P hub. Battery life varies with settings and use. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteBuilt-in buzzer rated up to 100 dB, with adjustable volume and a mute mode. | YesCatalog note105dB | |
| Included Accessories | ||
YesManufacturer sourceThe kit includes a 1.5-metre probe. Meross Smart Multi-Function Water Leak Sensor manufacturer product page →
Requires an MSH450P hub. Battery life varies with settings and use. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteShips with a 1.5 m extension probe that reaches behind washing machines, under sinks or into tanks. | No | |
| Integrations | ||
NoCatalog noteAlexa 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 | NoCatalog noteAlexa 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 | |
MSH450P Hub requiredCatalog noteThe MSH450P hub republishes the sensor over Matter, which is how it joins Apple Home. | No | |
MSH450P Hub requiredCatalog noteMatter, and therefore Google Home, arrives through the Meross MSH450P hub that bridges the sensor. | No | |
MSH450P Hub requiredCatalog noteVia Matter through the MSH450P hub; Home Assistant is a certified Matter controller and also reads Meross devices through the community meross_lan integration. | Yes | |
MSH450P Hub requiredCatalog noteThe sensor itself speaks Bluetooth Low Energy; the MSH450P hub carries it into Matter. | No | |
MSH450P Hub requiredCatalog noteVia Matter through the MSH450P hub. | No | |
| Power | ||
4 yearsManufacturer sourceAdvertised battery life is up to four years. Meross Smart Multi-Function Water Leak Sensor manufacturer product page →
Requires an MSH450P hub. Battery life varies with settings and use. Document check only; not a hands-on test or verification of every regional or firmware variant. | 5 years | |
| CR123A | 2x AAA | |
| No | No | |
| Sensors | ||
Freezing conditionsCatalog noteDetects freezing conditions to warn before pipes burst, rather than reporting ambient temperature readings. | Low Temperatures | |
| No | No | |
YesManufacturer sourceThe sensor detects water leaks. Meross Smart Multi-Function Water Leak Sensor manufacturer product page →
Requires an MSH450P hub. Battery life varies with settings and use. Document check only; not a hands-on test or verification of every regional or firmware variant. | Yes | |
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