KLIPPBOK is IKEA's cheap Matter over Thread leak sensor: it beeps locally on contact with water and reports to Home Assistant as a standard Matter leak detector. Budget for 2 AAA batteries and a Thread border router. I haven't run this one; the notes come from IKEA's US product page, the CSA listing and Matter Survey data.
Standout: A low-cost Matter over Thread leak sensor with a built-in beeper.
Notes last checked Nov 6, 2026.
Compatibility snapshot
Home AssistantgoodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple HomegoodWell supported, with only minor gaps.
Google HomegoodWell supported, with only minor gaps.
AlexagoodWell supported, with only minor gaps.
Works offlineyes
Setupeasy
Extra hub neededno
Powerbattery
Local control facts
Home Assistant: matter integration, Local Push (home-assistant.io, checked Nov 7, 2026)
Matter: certified (csa-iot.org, checked Nov 6, 2026)
IKEA US product page ($11.99; beeps when it comes into contact with water; Matter over Thread, needs a Thread Border Router such as DIRIGERA; 2 x AAA batteries sold separately; compatible with Amazon, Apple, Google, Homey and Samsung; no IP rating listed; 1 x 3 x 2 in) · checked Nov 6, 2026
CSA certification (CSA262BOMAT52420-24, 04/30/2026, PID 0x8006, firmware 1.0.13, Thread and Bluetooth, Matter 1.3, device type 0x0043) · checked Nov 6, 2026
Matter Survey (seen 21,298 times; Thread; Water Leak Detector endpoint; No Binding; Group control not shown) · checked Nov 6, 2026
Home Assistant Matter integration docs (Matter integration IoT class is Local Push; Thread devices need a Thread border router nearby) · checked Nov 6, 2026