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Shelly

Shelly Flood Gen4. Smart Water Leak Sensor with Multi-Protocol Connectivity.

Shelly Flood Gen4. Smart Water Leak Sensor with Multi-Protocol Connectivity.

Flood Gen4

Condition: New

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$32.99 USD
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A smart water leak sensor designed to detect leaks early and help prevent costly water damage.
Shelly Flood Gen4 delivers real-time alerts, flexible integration across platforms, and reliable protection for homes, rental properties, and professional installations.

Compact, battery-powered, and easy to install, it’s an effective solution for monitoring areas at risk such as kitchens, bathrooms, basements, laundry rooms, and garages.

Why Shelly Flood Gen4

Early detection. Smarter protection. Less damage.

Shelly Flood Gen4 helps you stay one step ahead of water damage by detecting leaks, spills, or rainwater intrusion as soon as they occur. With instant alerts and smart automation options, you can react quickly before a small issue turns into an expensive repair.

Designed for flexibility and reliability, it works across multiple smart home ecosystems, supports local automation even without internet connectivity, and fits seamlessly into both residential and professional environments.

Key Features

  • Multi-Protocol Connectivity
    Choose the best protocol for your setup: Wi-Fi, Bluetooth, or Zigbee, ensuring flexible integration across platforms and ecosystems.
  • Matter-Certified
    Seamlessly integrates into any Matter-enabled ecosystem, enabling reliable local control and future-proof smart home compatibility.
  • Flood & Rain Detection
    Detects water leaks, spills, or rainwater intrusion and sends instant alerts to your phone or automation system.
  • Extended Leak Sensor Cable
    Includes a 2 m extendable leak sensor cable, ideal for monitoring larger or hard-to-reach areas.
  • Customizable Alarm Modes
    Choose between Intense, Normal, or Economic alarm modes to match your environment and notification preferences.
  • Battery-Powered Operation
    Runs on 4 × AA 1.5 V batteries (included) for flexible placement and uninterrupted protection during power outages.
  • IP44 Environmental Protection
    Built with IP44-rated protection, suitable for humid environments such as basements, garages, and laundry rooms.
  • Smart Automation & Local Control
    Supports local automation actions and smart scenes, continuing to operate even when internet connectivity is unavailable.
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Gen4 devices

Experience next-level smart home automation with Shelly Gen4 novelties.
Each Gen4 device offers multi-protocol connectivity, featuring Wi-Fi, Bluetooth, Zigbee, and Matter.
Choose your connection and set up your Shelly device to work with your preferred smart home network in no time.

Common Use Cases

  • Leak Detection & Water Damage Prevention

    Detect water leaks early and receive instant alerts to prevent costly damage caused by burst pipes, appliance failures, or plumbing issues.

  • Kitchens & Bathrooms

    Monitor areas with sinks, dishwashers, toilets, and showers where leaks are more likely to occur and often go unnoticed.

  • Laundry Rooms & Utility Areas

    Protect washing machines, water heaters, and utility sinks by detecting leaks before they spread across floors or walls.

  • Basements & Garages

    Ideal for basements and garages prone to flooding, seepage, or rainwater intrusion during storms or heavy rainfall.

  • Rental Properties & Property Management

    Remotely monitor multiple units, reduce emergency maintenance calls, and protect properties from unexpected water damage.

  • Smart Home & Automation Scenarios

    Trigger automations such as shutting off water valves, sending alerts, or activating sirens by integrating Shelly Flood Gen4 with other smart devices.

Functionalities

  • Flood & Rain Detection

    Detects leaks, spills, or rainwater intrusion with instant alerts to your phone or home automation system.

  • Extended Leak Sensor Cable

    Monitor hard-to-reach places for broader coverage.

  • Customizable Alert Modes

    Choose from three smart alarm styles: Intense, Normal, and Economic

  • Multiprotocol connectivity

    Highly compatible! Choose the best protocol for your smart home - Wi-Fi, Bluetooth or Zigbee

  • Battery-powered

    Powered by 4x AA 1.5V (included) for reliable, low maintenance protection.

  • Smart Scenes & Automation

    Set automation scenarios, like turning off appliances, by combining Shelly Flood Gen4 with your other Shelly or third-party devices.

Frequently Asked Questions

How does Shelly Flood Gen4 detect water leaks?

Shelly Flood Gen4 uses an external leak sensor cable to detect the presence of water and sends instant alerts when a leak is detected.

Does it work without an internet connection?

Yes. Shelly Flood Gen4 supports local automation, allowing it to continue operating and triggering actions even if your internet connection is temporarily unavailable.

Is the leak sensor cable extendable?

Yes. The device includes a 2-meter leak sensor cable, which can be extended to monitor larger or hard-to-reach areas.

How is Shelly Flood Gen4 powered?

It is battery-powered and runs on 4 × AA 1.5 V batteries (included), enabling flexible placement without wiring.

Can it be integrated with other smart home systems or trigger automations?

Yes. Shelly Flood Gen4 supports Matter, Wi-Fi, Bluetooth, and Zigbee, and can be integrated with major smart home platforms to trigger automations such as alerts or shutting off a water valve.

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed with Wi-Fi Protocol.(*)
Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

(*) Platform app / Hub required when used with Zigbee / Matter

Shelly App
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed with Wi-Fi Protocol.(*)
Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

(*) Platform app / Hub required when used with Zigbee / Matter

Shelly App
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms

Warranty

  • USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.

  • Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
  • Gen 1: 2 years.
  • Plus, Gen3, Gen4, Wave: 3 years.
  • Pro Line: 5 years.

Special Notes

  • Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
  • Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.

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