Smart shutoff valves
Compare automatic main-line shutoff valves by leak response, pipe fit, power, connectivity, and installation checks.
THIRDREALITY KM1 KM1 Smart Water Leak Sensor
Features
- Matter Certified Compatibility for seamless connection with Apple Home, Alexa, Home Assistant, Homey
- 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
General specs
- Brand: THIRDREALITY
- Model: KM1
- Seller: Retailer
- 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
- Pre-bound Sensors: 3
- Wi-Fi Requirement: 2.4 GHz
- Alarm Mute Feature: Yes
- Batteries Included: No
- Sensor Battery Type: AAA 1.5V alkaline
- Compatible Platforms: Apple Home, Alexa, Home Assistant, Homey
- Matter Certification: Certified
- Connectivity Protocol: Matter Over WiFi
- Controller Power Source: Type-C power cable (5V)
- Number of Batteries per Sensor: 2
- Maximum Supported Water Detectors: 10
- Number of Included Water Detectors: 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.
Partner offer temporarily unavailable
Shipping options
Delivery to 
United States
United States
Available
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.
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
|
THIRDREALITY KM1
|
Shonmau Water Sensor White WiFi connectivity for remote alerts
|
GoveeLife H5043+H5058 App & Email Real-time Alerts
|
GoveeLife H5059+H5044 1804ft long monitoring range
|
GoveeLife H5043+H5058 White SMS, APP & Email real-time alerts
|
Smart Water Leak Detector Kit Real-time app notifications via 2.4G WiFi
|
|
| Brand | THIRDREALITY | Shonmau | GoveeLife | GoveeLife | GoveeLife | micmi |
| Model | KM1 | Water Sensor | H5043+H5058 | H5059+H5044 | H5043+H5058 | |
| Rating |
|
|
|
|
|
|
| Price | €35.72 | €8.92 | €80.38 | €62.52 | €53.58 | €22.05 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| 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 | |||
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.