Product Library / Water Protection & Plumbing

Eve Water Guard (2nd generation, Thread)

Compiled by SmartHomeWorkflow Research · Eve Systems · Water Protection & Plumbing · ~$109.95 ($109.95 is Eve's own US figure for this model, read from its product page on 2026-09-17 — the price the Eve Store attaches to this product's own buy button. It replaces the $99.95 this record had carried since the February 2022 Thread-model launch, so the figure published here was running about 9% under the maker's own. Two honest limits: Eve prints no price in the page's readable text, and the page's buy section is headed 'Buy from our partners', so this is the maker's list price at the time of research rather than what any particular shop charges today. The same page in euros reads €99.95, which is why the two currencies no longer match.)

Compatibility

? Inconclusive means we researched that ecosystem and the evidence doesn’t settle it — the catch says why, and the sources are listed below. It is a statement about the available evidence, never a verdict on the product. A Setup Check researches your exact setup where the official sources don’t answer.

Protocols: THREAD · BLUETOOTH^{[2][3][4][14][29]}

Needs before it works: An Apple Thread border router — HomePod mini, HomePod (2nd gen), or Apple TV 4K (2nd gen, or the 3rd gen Wi-Fi + Ethernet model) — which doubles as the Apple home hub needed for remote alerts and automations. A non-Apple border router does not substitute: this device speaks HomeKit over Thread, not Matter, so a Google, SmartThings or eero border router cannot carry it. Setup requires an iPhone or iPad; there is no Android path.^[3][29]

What it can do^[17]

Listed capabilities are what we could establish from vendor documentation. An ability missing here is unestablished — not necessarily absent.

Subscription reality^[8][28]

✓ Works without a subscription: Yes.

Vendor account required: No — no vendor account is involved.^[8][28]

No subscription and no vendor account at all — Eve states there is no Eve cloud or bridge, and settings sync through the buyer's own iCloud rather than an Eve server. This is verified from Eve's privacy and product pages, not assumed from silence.

Maintenance reality^[3]

• Batteries: None — mains powered (100–240V, 50/60 Hz, 50 mA adapter); no battery and no battery backup
• Works without the internet: Yes — the core function runs on the device or your home network. A vendor cloud may still be involved in remote access.^[3][28]
• Runs fully local: detection, the siren, and HomeKit automations all execute without an internet connection or vendor cloud, and only remote (away-from-home) notification needs the Apple hub reachable. The mains requirement is the practical catch — the unit must sit at an outlet, so only the cable can reach where water actually pools. The 6.5 ft / 2 m sensing cable is reusable rather than consumable and daisy-chains via extensions, though Eve's own two pages disagree on the maximum run (490 ft on the product page, 500 ft / 150 m in the FAQ) — recorded as ~150 m rather than picking one. The siren cannot be disabled or volume-adjusted, and muting it is available only in the Eve app, not the Apple Home app.
• Security updates: No security-update support date is on record for this model yet. We haven't yet checked whether Eve Systems publishes one, so this is a gap in our research — not a statement about the manufacturer.

The catch

It is a wired, Apple-only leak detector, and three constraints compound. It needs mains power, so the unit sits at an outlet and only the cable reaches the floor where water collects. It speaks HomeKit over Thread with no Matter certification, so Alexa, Google Home and Android are excluded outright — and Eve has passed it over through three and a half years of Matter upgrades covering eight other products. And meaningful function, meaning remote alerts and automations, requires an Apple TV or HomePod on top of the purchase. Against that: no account, no cloud, no subscription, and a sensing cable that runs to roughly 150 metres.

Who it's for

Apple Home households that already own a HomePod or Apple TV and need to watch a long linear run — behind a washer, along a water heater drip pan, down a length of exposed pipe — rather than one point on a floor, and that specifically want a device with no vendor account or cloud behind it. It is the wrong product for Android households, for anyone mixing ecosystems, and for anyone who needs the sensor somewhere far from an outlet.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.

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