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Water Leak Sensor 1

  • $17.95
  • $25.99
Shipping calculated at checkout.

UPC: 850024791480 



  • Smart wireless water sensor monitors the presence of water and reports the status to the YoLink app
  • Note: For water level monitoring (detection of the absence of water) and for additional, water leak/level detection options, including integral sounders and water detection cables, consider our Water Leak Sensor 2


  • Built-in water-sensing probes, on top and bottom, self-contained inside the rugged IP68-rated waterproof housing
  • Portable; may be placed anywhere in your home or wall-mounted
  • Wireless operation; no 120V outlet or wiring required
  • Battery-powered (two standard alkaline AAA batteries, included)
  • LoRa long-range/low-power technology offers 5+ years battery life, compared to 1+ year for other brands
  • Real-time water sensor status displayed on the YoLink app
  • Alexa voice assistant and IFTTT integration
  • YoLink Control D2D device-to-device pairing allows for the Water Leak Sensor to directly control other YoLink devices, without an internet connection, and without power ("No WiFi, No Internet, No Power - No Problem!")
  • YoLink’s industry-leading long range communication (1/4 mile, open air!) allows for operation in larger homes and in areas difficult for other wireless systems, such as basements, separate garages/structures, and even outside your home
  • Two year warranty


  • Exceptional value; high-quality wireless smart leak/flooding detection at a great price
  • Be informed immediately of off-normal environmental conditions, such as water from leaks or flooding, in your home and property, before expensive repairs are required
  • Create custom automation using the YoLink app, to trigger responses from other YoLink devices, such as the Siren Alarm
  • Compact design allows for placing the sensor where others may not fit
  • Easy to install and portable; move to other locations as needed
  • Lower cost of ownership than other technologies; low-power operation means batteries may last over 5 years, compared to 1 or less from other brands
  • Carefree maintenance, with more years between battery replacement
  • Low-battery alerts give you advanced warning that it is almost time to replace the batteries
  • Uses standard alkaline batteries (2 AAA batteries); no Lithium or special batteries required
  • Works with the convenient and user-friendly YoLink app
  • Extremely easy and fast installation using the YoLink app with Scan & Play



  • Place the YoLink Water Leak Sensor anywhere that is at risk of high moisture or water, due to leaks or flooding
  • Use the YoLink smartphone app to remotely monitor the status of your water leak sensors in your home, rental property, condo, summer home, or business (internet connection and YoLink Hub required)
  • YoLink’s industry-leading long range communication allows for placing the sensor in your out-buildings, separate garage building, barns, greenhouse, etc.
  • Some common applications include:
    • Locations at or below grade, subject to water incursion
    • Basement floors
    • Near sump pumps
    • Under water heaters
    • Under sinks
    • Next to toilets
    • Under or near laundry machines
    • Under dishwashers
    • Under refrigerators & ice machines
    • Under fish tanks/aquariums
    • Under swimming pool pumps and equipment*
    • In attic spaces under a leaky roof*
    • Inside hot tubs*
      • *Refer to device environmental limitations in Technical Specs, below. Use this device outside the recommended ranges at your own risk; warranty may be voided, etc.


  • YoLink Hub is required. Starting your first YoLink system? Consider one of our kits
  • Pair your sensor with the YoLink Siren Alarm, for an attention-getting, high-dB alarm activation (SpeakerHub, hub with speaker for tones and messages, coming November 2021)
  • Pair your sensor with the YoLink wireless valve  controller, to automatically turn off a water valve if a leak is detected. Water Shut-Off Collection


  • YoLink Hub with an internet connection (wired Ethernet or 2.4GHz Wi-Fi). Refer to the Hub user guide for additional information
  • Smartphone or tablet running iOS 9 or higher, Android 4.4 or higher
  • Tools Required: None
  • Installation Difficulty Level: Super Easy


  • Semtech® LoRa® RF Module YL09 microcontroller with 32-Bit RISC processor
  • Color: White
  • Dimensions (L x W x D): 2.44 x 2.44 x .96 inches (62 x 62 x 24.5 mm)
  • Multi-color status LED (underside)
  • Set button (underside)
  • Power: 2 AAA batteries (3V DC)
  • Environmental:
    • Operating Temperature Range: 32°F – 122°F (0°C – 50°C)
    • Operating Humidity Range: ≤100%RH non-condensing
    • Intended for indoor use only


  • (1) YoLink Water Leak Sensor (batteries included)
  • (1) Quick Start Guide