THIRDREALITY Smart Water Leak Sensor KM1, Matter Over WiFi, 1 KM1-controller with 100dB Alarm & 3 Water Detectors, 3-Year Battery Life, No Batteries, Work with Apple Home, Alexa, Home Assistant, Homey

Price: $39.99 - $29.99
(as of Oct 14, 2026 22:52:46 UTC – Details)

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Third Reality is dedicated to developing easy-to-use smart home technology, allowing more users to easily manage and automate home devices without specialized skills. Our products emphasize simple installation and user-friendly interfaces.

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Matter Certified Compatibility: THIRDREALITY’s Smart Water Leak Sensor KM1 has been certified by the Matter protocol. Utilize Wi-Fi Matter to seamlessly connect with your local Matter Controller, such as Home Assistant(ZHA&Z2M), Homey, Apple Home, or Echo devices. This ensures seamless connection and simplifies the setup process, eliminating compatibility issues. Note: 2.4 GHz Wi-Fi and Matter Controller Required
Plug-and-Play, Quick Deployment: The controller unit comes standard with a Type-C power cable (5V) and is pre-bound to 3 sensors at the factory (supports up to ten water leak sensors). Once the controller is paired, the three pre-installed sensors will become operational immediately. Users can also set up automated notifications via the mobile app to receive real-time alerts, ensuring dual protection both locally and remotely
Loud Alarm with Mute: When a sensor detects water leakage, the controller triggers a powerful 100dB local alarm—loud enough to be clearly heard even in distant or enclosed spaces like basements. If needed, you can easily silence the alarm by sliding the controller switch to the right, instantly muting the sound without interrupting detection
Great Range & Long Battery Life: The controller features a powerful signal with a range of up to 328 ft (100 m) in open areas. Each water leak sensor is powered by two AAA 1.5V alkaline batteries, which can last up to 3 years under typical usage, eliminating the need for frequent replacements. The battery compartment is also designed for easy access (Batteries not included)
Great Range & Long Battery Life: The controller features a powerful signal with a range of up to 328 ft (100 m) in open areas. Each water leak sensor is powered by two AAA 1.5V alkaline batteries, which can last up to 3 years under typical usage, eliminating the need for frequent replacements. The battery compartment is also designed for easy access (Batteries not included)
3R-Installer APP and OTA Updates: Users can conduct OTA (Over The Air) updates for the product via the 3R-Installer APP, continuously optimizing and enhancing product functionalities, and bringing a richer and smoother user experience