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THIRDREALITY KM1 Smart Water Leak Sensor
For the homeowner who dreads the silent drip of a leaky pipe or the slow seep from a faulty appliance, the THIRDREALITY Smart Water Leak Sensor KM1 offers proactive peace of mind. This system is designed to catch water issues before they escalate into costly repairs, making it ideal for monitoring basements, laundry rooms, or under-sink areas where leaks often go unnoticed.
Unlike basic alarms, this sensor provides dual protection: a loud 100dB local alarm alerts you immediately if you're home, while the Matter-certified setup sends real-time notifications to your phone via Apple Home, Alexa, or other compatible platforms. The 100-meter range ensures coverage even in large homes, and with a 3-year battery life for the sensors, you won't need to worry about constant maintenance. Set it up once, and it quietly watches over your home, giving you confidence that you'll know about a leak before it becomes a disaster.
Features
- Plug-and-Play with pre-bound sensors and automated notifications
- Loud 100dB local alarm with mute function
- Great range up to 328 ft in open areas
- Long 3-year battery life for sensors
- OTA updates via 3R-Installer APP for continuous optimization
- Matter Certified Compatibility for seamless connection with Apple Home, Alexa, Home Assistant, Homey
General specs
- Brand: THIRDREALITY
- Model: KM1
- Seller: Amazon
- ID: B0GJCYV2LD
- Model: KM1
- Mobile App: 3R-Installer APP
- Setup Type: Plug-and-Play
- Battery Life: 3 years
- Product Name: THIRDREALITY Smart Water Leak Sensor KM1
- Update Method: OTA (Over The Air)
- Controller Type: KM1-controller
- Controller Range: 328 ft (100 m)
- Alarm Sound Level: 100dB
- Bound Pre Sensors: 3
- : 2.4 GHz
- Alarm Feature Mute: Yes
- Batteries Included: No
- Battery Sensor Type: AAA 1.5V alkaline
- Compatible Platforms: Apple Home, Alexa, Home Assistant, Homey
- Certification Matter: Certified
- Connectivity Protocol: Matter Over WiFi
- Controller Power Source: Type-C power cable (5V)
- Batteries Number Of Per Sensor: 2
- Detectors Maximum Supported Water: 10
- Detectors Included Number Of Water: 3
- First listed by seller: April 15, 2026
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
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Top live offer
€34.43
Free shipping
New
Third-party seller
FBA
Shippable
Offers updated: 8/31/26
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
Price History for seller Amazon
| Date | Price |
|---|---|
| 4/15/26 | €34.43 |
| 2/12/26 | €34.43 |
Shipping options
Delivery to 
United States
United States
Available
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THIRDREALITY KM1
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| Brand | Shonmau | GoveeLife | micmi | |||
| Model | KM1 | Water Sensor | H5043+H5058 | H5059+H5044 | H5043+H5058 | |
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| Price | €34.43 | €8.60 | €77.48 | €51.64 | €51.65 | €22.38 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 28, 2026 | May 28, 2026 | Jun 24, 2026 | May 28, 2026 | May 11, 2026 | May 28, 2026 |
| Battery Life | 3 years | Over 5 months standby | 5 years | 5 years | ||
| Alarm Sound Level | 100dB | 100 dB | 100 dB | |||
| Included Components | Water Detector 1Pack and Water Sensors 6 Packs | Gateway +Water Sensor 5 Pack | 3 Water Sensors, 1 Base Station | |||
THIRDREALITY KM1
€34.43
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
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