Shelly Flood Gen4 is an advanced, smart water leak detector supporting multiple communication protocols, which can monitor a significantly larger area than traditional point detectors with the flexible sensor cable that can be extended up to 150m. An ideal choice, for example, for the leakage protection of washing machines and dishwashers, basements, garages or holiday homes.

Shelly Flood Gen4 stands out for its multi-protocol connectivity capabilities – it supports Wi‑Fi, Bluetooth, Zigbee and Matter, which ensures wide compatibility with various smart home systems. In addition, three alarm modes can be selected: Intensive, Normal and Economical, with which the detection and duration of operation can be optimized according to the user's needs.

The device works with batteries, no wired power supply is needed, so it can be easily placed anywhere in the apartment. Thanks to its Plug & Play installation, it can be put into operation quickly.

- Multiprotocol connection: Wi‑Fi, Bluetooth, Zigbee
- Leak detection: extendable sensor cable to cover a larger area.
- Two detection modes: Flood and Rain modes can be selected.
- Three alarm profiles: Intensive, Normal, Economy modes to optimize the alarm and energy saving.
- Works with batteries: with 4×AA 1.5V batteries (in the package), flexible placement.
- IP44 protection: cover suitable for outdoor, wet environments.
- Smart automation: supports local automation, cloud-based control from app or other systems.
- Wide compatibility: AppleHomeKit, GoogleHome, HomeAssistant, SmartThings, etc. works with systems.

Smart home protocols and platform compatibility
- Supported protocols: Wi‑Fi, Bluetooth, Zigbee and Matter multiprotocol device.
- Local remote control/protocol: via Bluetooth and Zigbee network, as well as built-in web interface.
- Factory platform compatibility: Shelly Smart Control application, Shelly Cloud.
- Matter compatibility: Yes Apple Home, Google Home, SmartThings, Amazon Alexa, etc. aid.
- Cloud-based platforms: Apple HomeKit, Google Home, SmartThings, Home Assistant.
- Third-party integrations: MQTT, UDP, Webhooks, KVS.
- Open source compatibility: Home Assistant, MQTT-based systems are supported.
- Voice control: Amazon Alexa, Google Assistant, Apple Siri (HomeKit).

Smart functions
- Remote status query and control (via app or automation).
- Real-time notifications when water leaks are detected.
- Three alarm profiles: Intensive, Normal, Economy.
- Local automation works even without internet.
- Built-in sound alarm (buzzer).
- Rain mode for moisture detection (e.g. rain detection).
- Cloud and local hybrid operation.

Other features
- Multi-protocol operation premium level sensor.
- Size: 97×76×25mm.
- IP44 protection can also be used outdoors (covered).
- Built-in buzzer.
- Simple installation, Plug & Play operation.
- Power supply: 4×AA 1.5V batteries (accessory).
- Battery life: up to 2 years (depending on use).
- Output: buzzer