Availability and price
Flood Prevention Bundle
4.1from 123 reviews on shelly.comShelly Flood Gen4
72.60 EUR82.50 EURYou save 9.90 EUR
"Added this as guard for main water line in garage. Tested by sprinkling small amount of water. Works as expected."
"Wifi/Zigbee/Blu connectivity gives you plenty of options to connect it to your system. Extremally useful part is the wire which detects moisture on the entire length of it..."
"Great little water sensor device which was very easy to Install. I am using it on the WiFi network, s0 set was simple enough..."
"It's great to see that Shelly is listening to customers. The CR123 battery of first Shelly Flood was a No-Go for me. Shelly Flood Gen4 is powered by 4 AA batteries, which is the right improvement..."
Checking stock on shelly.com
Colour: Ivory
How many kits
1
1 kits is the most this offer covers.
Frequently bought together
"Great product and works perfectly" W.P., verified buyer
Your total72.60 EUR
You save against shop prices9.90 EUR
This colour is out of stock right now. Pick another colour.
Next you can add optional extras. You pay on shelly.com.
- 6.7M+ householdsuse Shelly
- Listed in FrankfurtPrime Standard, SDAX
- 100% verifiedbuyer reviews
- 14 daysto change your mind
Works with
Amazon Alexa
Google Home
Apple Home
SmartThings
Home Assistant
openHAB
What customers say
4.1
from 123 reviews on shelly.com (Shelly Flood Gen4)
100% verified buyersJudge.me Diamond Authentic Shop
"Added this as guard for main water line in garage. Tested by sprinkling small amount of water. Works as expected."
A., Finland Verified buyer
Review of Shelly Flood Gen4
"Wifi/Zigbee/Blu connectivity gives you plenty of options to connect it to your system. Extremally useful part is the wire which detects moisture on the entire length of it..."
M., United Kingdom Verified buyer
Review of Shelly Flood Gen4
"Great little water sensor device which was very easy to Install. I am using it on the WiFi network, s0 set was simple enough..."
K., United Kingdom Verified buyer
Review of Shelly Flood Gen4
"It's great to see that Shelly is listening to customers. The CR123 battery of first Shelly Flood was a No-Go for me. Shelly Flood Gen4 is powered by 4 AA batteries, which is the right improvement..."
D., Germany Verified buyer
Review of Shelly Flood Gen4
Who you are buying from
Shelly is a listed European company, trusted in millions of homes
- 6.7M+households use Shelly
- 30M+Shelly devices sold
- 100+countries
- ListedFrankfurt Stock ExchangePrime Standard, ticker SLYG. Also listed in Sofia.
- IndexMember of the SDAXPart of Germany's DAX index family since April 2026.
Figures from shelly.com and Shelly Group investor relations, September 2026.
What is in the box
1 x Shelly Flood Gen4Sits on the floor under the sink. Sounds and messages your phone the moment the contacts get wet.
1 x Shelly Leak Sensor CableTwo metres of cable that senses water along its whole length. Runs along a pipe or a skirting board.- 1 x Shelly BLU H&T ZBHumidity and temperature. A wall that is slowly getting wet shows up here weeks before it shows up on the floor.
1 x Shelly Cable BracketKeeps the cable where you put it.- 1 x Shelly BLU Gateway Gen3Plugs into a socket and carries the humidity sensor into the app. Without it the BLU sensor has nothing to report to.
Flood Prevention Bundle
14 days to change your mind.
- Secure checkout on shelly.comPay by card, PayPal, Klarna or Google Pay.
- 14 days to change your mindSend it back within 14 days of delivery.
- Delivered by Shelly EuropeTracked courier delivery to your door.