Shelly Flood Gen4
S4SN-0071A; VID 0x1490 PID 0x1822; 4×AA; IP44; 2m extendable leak cable
High confidence
2026-10-16 last checked
wifi transport
Specs
| Brand | Shelly |
|---|---|
| Model | Shelly Flood Gen4 |
| Device type | Leak |
| Matter / firmware | Matter 1.3 (CSA2542FMAT45953-24, certified 2025-06-30, fw 1.3.0-s1) |
| Transport | wifi |
| Thread role | n/a (Wi-Fi; also Zigbee firmware mode via 5× button — Matter path is Wi-Fi) |
| Confidence | High |
| Last checked | 2026-10-16 |
Platform support for this device type
| Field | Apple Home | Google Home | Amazon Alexa | SmartThings | Home Assistant | Homey | Hubitat |
|---|---|---|---|---|---|---|---|
| Pairs | Y | Y | Partial | Y | Y | Y | Unknown |
| Control | Y | Y | N | Y | Y | Y | Unknown |
| Starts automation | Y | Y | Unknown | Y | Y | Y | Unknown |
| Controlled by automation | N | N | N | N | N | N | Unknown |
| Confidence | Med | Med | Med | High | High | Med | Med |
Product notes
CSA End Product primary 0x0043 Water Leak Detector. Distinct retail SKU from Shelly Flood S Gen4 (pad/IP67/CR123A, CSA25430MAT45954-24 PID 0x1826). Shelly US Matter-certified claim; Alexa Contact Sensor / Google Sensor State / ST Water Sensor capabilities per Shelly docs. No SKU-level automation test this pass.
v0.53 High add (high4 thicken): CSA2542FMAT45953-24 primary 0x0043 + Shelly US retail in stock ($39.99). Distinct from shelly-flood-s-gen4. leak 4→5.
How it differs from the type answer
- Extendable leak-sensor cable (2m, up to 150m with extensions) vs Flood S Gen4 stainless pad form factor.
- Flood vs Rain detection modes; three alarm profiles (Intense/Normal/Economic).
- 4×AA / IP44 vs Flood S CR123A / IP67.
- Platform exposure follows leak type matrix; no SKU-level automation test this pass.
Sources
- csa-iot.org · official · 2026-10-16
- us.shelly.com · retail · 2026-10-16