Aqara Water Leak Sensor 3 Pack, Zigbee Water Leak Detector for Alarm System

Why it's worth it

These Zigbee sensors work natively with Apple HomeKit and support Matter, so a leak can trigger a shutoff valve or a phone alert entirely on your local network. The probes register water as shallow as half a millimeter.

If you run Apple Home, these are the obvious choice. Native HomeKit support means the automation logic lives on your HomePod or Apple TV, not on someone's cloud server. Water hits a probe, your local hub fires the automation, and a compatible valve closes — no internet required. That independence is worth a lot in a device whose entire job is working during an emergency.

Sensitivity is genuinely high. Aqara rates the probes down to half a millimeter of water, which is a thin film rather than a puddle. In practice that means the alert comes before water has spread to the hardwood next to the dishwasher. Owners running these under every sink and appliance consistently describe getting notified from the smallest bit of water.

From our review of 8 smart water leak detectors, by David Sinclair, Managing Editor

What we like

• +If you run Apple Home, these are the obvious choice
• +Sensitivity is genuinely high
• +Zigbee sips power, and that shows up in the battery
• +There's a well-documented enthusiast path here too

What to know

• –You need an Aqara hub, and it has to be an Aqara hub
• –Long-term reliability is the concern worth flagging