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Matter leak sensor on SmartThings

For leak sensors, SmartThings supports pairing, control and automation triggers. It does not support automation actions. Our confidence in this answer is High.

High confidence
2026-10-19 last checked
3/4 capabilities confirmed

At a glance

AnswerSmartThings
PairingY
ControlY
Starts an automationY
Controlled by an automationN
ConfidenceHigh
Matter spec1.0+

Y = confirmed for this device type, Partial = works with limits, N = not supported by this platform, Unknown = not enough dated evidence. These are type-level answers, not a guarantee for one product.

What this means

All four answers are confirmed for this device type on this platform. Individual products can still implement less than the device type — check the product notes before you buy.

Requirements

Hub requirement: SmartThings-compatible hub required (standalone hub, Samsung TV, Station, etc.).

Matter spec: 1.0+.

Confidence

We have direct, dated evidence for most of these answers, including native hands-on reports where available.

Last checked 2026-10-19. The answers above come from the published type matrix; the sources below are what they rest on.

Sources

Showing the 8 most recent of 10 recorded sources.

Frequently asked questions

Does SmartThings support a Matter leak sensor?

SmartThings pairs a Matter leak sensor and reports water detection; the row is High confidence, checked 2026-10-19. SmartThings can control a Matter leak sensor from its app, including water-detection state (High, checked 2026-10-19).

Can a Matter leak sensor start a SmartThings automation?

Yes — water detected by a Matter leak sensor can start a SmartThings automation. As an action, SmartThings cannot use a Matter leak sensor in an automation (High, checked 2026-10-19).

Do I need a hub for a Matter leak sensor on SmartThings?

SmartThings needs a Matter controller before a Matter leak sensor joins; keep the maker app for its alarm.

Next steps

Other platforms for leak sensors

Informational only — verify before you buy. How we check · All leak sensors across platforms