Meross
Meross Smart Water Leak Sensor
Sensors · Security
HomeKit onlyLeakBridgeWi-Fi
Where to buy
Search other stores
Store links open the product’s own page, matched to this accessory by name and model number. Prices and stock aren’t checked and vary by region; check that the model you buy says it works with Apple Home or Matter.
From store listings
From the Bing Shopping page for “Meross Smart Water Leak Detector, Wi Fi Water Sensor 3 Pack & Hub Kit, Support Apple Home Kit, Smart Things, Ip67 Waterp”.
In ReReHome
Readings from eleven sensor types, any of which can trigger an automation.
And every other characteristic or Matter attribute it exposes.
Reports to Apple Home
Connectivity
- Wi-Fi
How it reaches your home
- Meross 433 MHz RF → Meross Smart Hub MSH300HK / MSH400HK (Wi-Fi) → Apple Home (HomeKit bridge)
Identifiers
| Manufacturer | Meross |
|---|---|
| Model / SKU | MS400 |
| Model / SKU | MS400HK |
Reported versions
| Version | Date | Source |
|---|---|---|
| Firmware 1.2.5 | homedevices.app | |
| Firmware 1.2.3 | homedevices.app | |
| Firmware 1.1.18 | homedevices.app |
Compatibility notes
- MS400 water-leak sensor is on the MSH300 compatible list; retailer lists MS400HK-EU as 'Hub required'.
- Firmware versions reported by community devices: 1.1.18, 1.2.3, 1.2.5.
- Reported by HomeKit users in the HomeDevices community catalog (1 record, DE); not on Apple's accessory page. It reaches Apple Home through its maker's bridge or hub.
- Category from the product name ("sensor").
