Shelly Flood Gen4 Water Sensor

The Shelly Flood Gen4 is a smart water alarm sensor equipped with an innovative leak sensor cable. It detects water leaks under washing machines, dishwashers, or in basements before they develop into larger damage and sends instant notifications to your mobile device. Multiple leak sensor cables can be connected, extending the monitoring range up to 150 meters. The device supports Wi-Fi, Zigbee, Bluetooth, and Matter and features an integrated web interface for easy monitoring, control, and configuration settings. Two operating modes (Flood Detection and Rain Detection) and three integrated alarm modes (Intense, Normal, Economic) allow for customization of detection in various scenarios. The sensor is battery-operated and features a built-in buzzer for local alerts, making it flexible and usable without external power supply. IP44 protection ensures resistance against dust and splashes of water. Thanks to compatibility with third-party smart home systems and local automation functions, the Flood Sensor can be integrated into large automation systems as well as small installations. With the Shelly Cloud and the Shelly Smart Control App, you gain additional control options and security protocols. It is suitable for private homes, multi-family houses, small businesses, public institutions, or agricultural applications.

Features:

Expandable leak sensor cable monitors large areas and can be extended to up to 150 m
Supports Flood Detection and Rain Detection modes and three alarm levels (Intense, Normal, Economic)
Sends real-time notifications and has a built-in buzzer for local alarms
Battery-powered design with IP44 protection for flexible installation and resilient use
Compatible with Wi-Fi, Bluetooth, Zigbee and Matter; integrated web interface for configuration
Wide compatibility with third-party smart home systems and support for Shelly Cloud
Powered by four AA batteries, included in the package.
Part of the fourth Shelly generation with improved stability and range.
Ideal for basements, kitchens, bathrooms, and utility rooms.

Application Examples:

Immediate detection of floods in basements, bathrooms or washrooms to prevent damage
Protection from water damage by placing it near water heaters, dishwashers, or washing machines
Monitor vulnerable areas such as kitchens or under sinks with easy smartphone notification
Automatic shutdown of appliances like washing machines or dishwashers when a leak is detected
Early detection of pipe leaks by laying the sensor cable along pipes

Documentation:

Technical Specifications:

Manufacturer: Shelly
Manufacturer SKU: Shelly_Flood_Gen4
Case Material: Plastic, Color: White
Operating Temperature: –20 °C to 40 °C
Humidity: 30 % to 70 % relative humidity
Maximum Altitude: 2000 m
Power Supply: 4× AA 1.5 V batteries
Estimated Battery Life: approximately 2 years (depending on usage and network strength)
Leak sensor cable: 2 m, via designated port, extendable up to 150 m
Wi-Fi Protocol: 802.11 b/g/n/ax; RF Band 2401-2483 MHz, range up to 30 m indoors and 50 m outdoors
Bluetooth Protocol: Bluetooth 5 LE (2402 – 2480 MHz), range up to 10 m indoors and 30 m outdoors
Zigbee Protocol: 802.15.4 (2405 – 2480 MHz), range up to 100 m indoors and 300 m outdoors
Microcontroller: ESP-Shelly-C68F with 8 MB Flash
Function: Water sensor, Temperature sensor
Power Source: 4× AA batteries (included)
Compatibility: Shelly Smart Control, Amazon Alexa, Google Assistant
Dimensions: 96 × 78 × 25 mm
Weight: 275 g