Shelly Flood Gen4 – Smart Water Leak & Rain Detection Sensor
Shelly Flood Gen4 – Smart Water Leak & Rain Detection Sensor - Image 2
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Shelly Flood Gen4 – Smart Water Leak & Rain Detection Sensor

£24.99

Out of stock

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Overview

Shelly Flood Gen4 is a battery-powered smart water leak and rain detection sensor designed to detect leaks immediately and send alerts to your smart home system or mobile device, helping prevent costly water damage.

The device includes a 2 m leak detection cable (extendable up to 150 m) and supports multi-protocol connectivity via Wi-Fi, Bluetooth, and Zigbee, with Matter certification for broad smart home compatibility including Home Assistant, Apple Home, and Google Home.

Key features

  • Instant flood and rain detection
  • Wi-Fi, Bluetooth, and Zigbee connectivity
  • Matter-certified smart home compatibility
  • 2 m leak sensor cable (extendable to 150 m)
  • Battery-powered with up to 2 years operation
  • Three alarm modes: Intense, Normal, Economic
  • IP44-rated enclosure for environmental protection
  • Supports local automations and scenes

Product information

Use cases
  • Appliance Leak Monitoring
  • Detect leaks under washing machines, dishwashers, boilers, and sinks.
  • Basement and Utility Protection
  • Monitor basements, garages, and plant rooms where water intrusion is common.
  • Remote Property Monitoring
  • Receive alerts from holiday homes or unattended properties if leaks occur.
Technical specifications
Physical
Dimensions
97 × 76 × 25 mm
Weight (Without Batteries)
91 g
Weight (With Batteries)
185 g
Mounting
Wall
Shell Material
Plastic
Colour
White
Environmental
Operating Temperature
−20 °C to 40 °C
Humidity
30–70% RH
Maximum Altitude
2000 m
Electrical
Power Supply
Battery powered
Battery Type
4 × AA 1.5 V (included)
Estimated Battery Life
Approx. 2 years (usage dependent)
Sensors
Leak Sensor Cable Length
2 m (included)
Maximum Extension Length
Up to 150 m
Connection Type
Dedicated leak sensor port
Connectivity – Wi-Fi
Protocol
802.11 b/g/n/ax
RF Band
2401–2483 MHz
Max RF Power
< 20 dBm
Range
Up to 30 m indoors, up to 50 m outdoors
Connectivity – Bluetooth
Protocol
Bluetooth 5 (LE)
RF Band
2402–2480 MHz
Max RF Power
< 20 dBm
Range
Up to 10 m indoors, up to 30 m outdoors
Connectivity – Zigbee
Protocol
IEEE 802.15.4
RF Band
2405–2480 MHz
Max RF Power
< 20 dBm
Range
Up to 100 m indoors, up to 300 m outdoors
Microcontroller
CPU
ESP-Shelly-C68F
Flash Memory
8 MB
Firmware Capabilities
Schedules
No
Webhooks
10 hooks (2 URLs per hook)
Scripting
No
MQTT
Yes
UDP
Yes
KVS
Yes
What’s included
  • Shelly Flood Gen4
  • 2 m leak sensor cable
  • 4 × AA 1.5 V batteries
  • User guide

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