Shelly Flood Gen4
The Shelly Flood Gen4 is Matter certified (certificate CSA2542FMAT45953-24, certified Jun 30, 2025). It uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller. A certified Matter device can be added to any Matter controller whose app supports its device type, such as Apple Home, Google Home, Alexa, SmartThings or Home Assistant; features vary by app. The maker hasn’t named platforms on a page we hold. Sold in the US at Amazon, Shelly US and Newegg.
Certificate data: CSA ledger read . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA2542FMAT45953-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Jun 30, 2025 · Connectivity: Wi-Fi, Zigbee · Thread border router: Not needed (uses Wi-Fi)
- Works with
- Matter certified as a water leak detector, so it can work with Matter apps such as Apple Home, Google Home, Alexa and SmartThings when the app supports its device type; supported features vary by app. The maker hasn’t named platforms on a page we hold.
- CSA certificate
- CSA2542FMAT45953-24, certified Jun 30, 2025
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
Updated : the last change to this page’s certification, platform or store facts.
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Amazon
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Newegg
Notes
Affiliate link to Newegg's US product page for Shelly Flood Gen4 Smart Leak & Rain Detector, Matter-Certified, Wi-Fi/Zigbee/Bluetooth, 2m Extendable Leak Sen; GTIN 3800238071714 equals this record's GTIN. Newegg Marketplace listing (third-party seller); confirm the seller and condition. Confirm the exact variant, current price and delivery at the retailer.
Check the model, region and pack size at the retailer. Prices and availability are confirmed there.
CSA Matter Certified
Certificate: CSA2542FMAT45953-24Matter 1.3 certificate
Its certificate, CSA2542FMAT45953-24, is for Matter 1.3, certified Jun 30, 2025. The Matter version is the specification version on the certificate's ledger record.
Source: CSA Distributed Compliance Ledger, read Nov 10, 2026.
What Matter 1.3 added, and which devices use it →A leak detector with a sensing cable for areas around appliances or plumbing. This is Flood Gen4 (S4SN-0071A), distinct from Flood S Gen4. IP44 does not mean submersible. A leak alert does not shut off water by itself. Choose a separate supported temperature sensor if you need freeze monitoring.
Specifications
- Brand
- Shelly
- Category
- Sensors
- Protocols
- Matter, Wi-Fi, Zigbee
- Certificate ID
- CSA2542FMAT45953-24
- Certified
- Jun 30, 2025
- Firmware
- 1.3.0-s1
Ecosystem compatibility
Quick answers
- Is the Shelly Flood Gen4 Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA2542FMAT45953-24, certified Jun 30, 2025.
- Does the Shelly Flood Gen4 work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA2542FMAT45953-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Apple Home on a page we hold. Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub.
- Does the Shelly Flood Gen4 work with Google Home?
- Likely. It is Matter certified (certificate CSA2542FMAT45953-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home.
- Does the Shelly Flood Gen4 work with Alexa?
- Likely. It is Matter certified (certificate CSA2542FMAT45953-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Alexa on a page we hold. Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does.
- Does the Shelly Flood Gen4 work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA2542FMAT45953-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named SmartThings on a page we hold. SmartThings adds Matter devices through the SmartThings app and a Matter controller.
- Does the Shelly Flood Gen4 work with Home Assistant?
- Likely. It is Matter certified (certificate CSA2542FMAT45953-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.”
- Does the Shelly Flood Gen4 use Thread or Wi-Fi?
- Wi-Fi. Its catalog record lists Wi-Fi, so it joins your Wi-Fi network and does not need a Thread border router. You still need your platform’s Matter controller.
- Does the Shelly Flood Gen4 need a hub or a Thread border router?
- No hub of its own and no Thread border router: it joins your Wi-Fi network. You still need your platform’s Matter controller (a smart speaker, display, streaming box or hub), though Apple says an iPhone using iOS 18 or later can add Matter accessories without a home hub.
- When was the Shelly Flood Gen4 Matter certified?
- The CSA certified it on Jun 30, 2025 (certificate CSA2542FMAT45953-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the Shelly Flood Gen4?
- MatterCatalog has verified store links for it at Amazon, Shelly US and Newegg. Check the current price, model and pack size at the store.
From this product’s catalog record, not hands-on testing. Editorial policy
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