The Shelly Flood Gen4 is an advanced smart water leak sensor that supports multiple communication protocols and is capable of monitoring a significantly larger area than traditional point sensors, thanks to its flexible sensor cable that can be extended up to 150 meters. It is an ideal choice for protecting areas such as laundry rooms, kitchens, basements, garages, or vacation homes from water damage.
The Shelly Flood Gen4 stands out with its multi-protocol connectivity – it supports Wi‑Fi, Bluetooth, zigbee, and Matter, ensuring wide compatibility with various smart home systems. It also offers three selectable alert profiles: Intensive, Normal, and Eco, allowing users to optimize detection sensitivity and battery usage based on their preferences.
The device runs on batteries and does not require wired power, making it easy to place anywhere in the home. Thanks to its Plug & Play setup, installation is quick and hassle-free.
About the Shelly brand
Shelly is a brand of Shelly Group SE, a Bulgaria-based company that has been active in the IoT market since 2003. Its products are designed specifically for retrofitting existing homes with smart solutions, requiring no major rewiring. Popular products include smart relays, sensors, plugs, and energy meters. Shelly devices are compatible with platforms like Google Home, Alexa, Apple Home, and Home Assistant.
Main product features
- Multi-protocol connectivity: Supports Wi‑Fi, Bluetooth, zigbee, and Matter.
- Leak detection: Extendable sensor cable covers larger areas.
- Two detection modes: Flood and Rain modes available.
- Three alert profiles: Intensive, Normal, and Eco modes for optimal performance and power saving.
- Battery-operated: Powered by 4 × AA 1.5 V batteries (included), flexible placement.
- IP44 protection: Suitable for outdoor or damp environments.
- Smart automation: Supports local automation and cloud-based control via app or external systems.
- Wide compatibility: Works with Apple HomeKit, Google Home, Home Assistant, SmartThings, and more.
Smart home protocols and platform compatibility
- Supported protocols: Wi‑Fi, Bluetooth, zigbee, and Matter – true multi-protocol device.
- Local control/protocols: Via Bluetooth and zigbee networks, and built-in web interface.
- Native platform compatibility: Shelly Smart Control app, Shelly Cloud.
- Matter compatibility: Yes – supports Apple Home, Google Home, SmartThings, Amazon Alexa, etc.
- Cloud-based platforms: Apple HomeKit, Google Home, SmartThings, Home Assistant.
- Third-party integrations: MQTT, UDP, Webhooks, KVS.
- Open-source compatibility: Supports Home Assistant and MQTT-based systems.
- Voice control: Amazon Alexa, Google Assistant, Apple Siri (via HomeKit).
Smart features
- Remote status check and control (via app or automation).
- Real-time alerts when water leakage is detected.
- Three alert profiles: Intensive, Normal, Eco.
- Local automation works without internet connection.
- Built-in audible alarm (buzzer).
- Rain mode for moisture detection (e.g., rain sensor).
- Hybrid cloud and local operation.
Electrical features
- Power supply: 4 × AA 1.5 V batteries (included).
- Battery life: Up to 2 years (depending on usage).
- Output: Audible alarm (buzzer)
Other features
- Multi-protocol operation – premium-grade sensor.
- Dimensions: 97 × 76 × 25 mm.
- IP44 protection – suitable for outdoor use (in covered areas).
- Built-in audible alarm (buzzer).
- Easy installation, Plug & Play operation.
