YoLink Water Leak Starter Kit: Hub + 4 Leak Sensor 4 (105 dB Siren), LoRa Long-Range, App/SMS/Email Alerts, D2D Offline, 2 AAA Up to 5-Year Battery, Compatible with Alexa/IFTTT/Home Assistant

About This

• Complete plug-and-play kit: hub plus Leak Sensor 4 units, each with a built-in 105 dB audible alarm for instant on-site alerts.
• Long-range LoRa: reliable coverage where Wi-Fi struggles (up to 1/4-mile open air); get app, email, and SMS/text alerts and name sensors by location.
• Works even without internet: with YoLink Control-D2D, sensors can directly trigger YoLink sirens or shutoff valves for local protection during outages.
• Low-maintenance power: each sensor uses 2 AAA batteries with up to 5 years typical battery life; easy replacement.
• Scalable IoT platform: one hub supports 300+ YoLink devices; part of a whole smart home/building ecosystem; hub options include standard Hub, SpeakerHub, and Cellular Hub.
• What’s Included: This package includes 1 YoLink Hub and 4 Sensors—5 items total. The “Number of Items: 5” refers to the five individual products in the package, not five sensors.

Overview

• Color : White
• Brand : YoLink
• Power Source : AC/DC
• Compatible Devices : Smartphone
• YoLink offers two leak sensors for different needs. Water Leak Sensor 1 is a quiet, discreet option that relies on phone notifications. Water Leak Sensor 4 adds a loud built-in siren , making it ideal for high-risk areas like basements or garages. Both connect to the YoLink Hub for instant alerts.
• Runs on 2 AAA batteries (included) for up to 5 years of nonstop leak protection.
• Stays connected up to 1/4 mile, even through walls and floors where WiFi fails .
• Fully sealed design survives direct water contact, perfect for damp or flood-prone areas .
• Receive instant app, SMS, or email alerts . Works with Alexa, IFTTT, Home Assistant, and more.
• Power down? WiFi out? No problem . With YoLink’s D2D direct control, Leak Sensors continue to work seamlessly with YoLink Smart Valves and Water Meters, shutting off water the moment a leak is detected—no cloud, no delay, no worries .
• 1 YoLink Hub supports over 300 devices with long-range LoRa, ideal for large homes and even high-rise buildings . Reliable coverage where WiFi fails .
• Manage multiple YoLink systems across properties with Readius , a cloud platform for centralized monitoring , alerts, and reporting at scale.
• Water Leak Sensor 1
• Water Leak Sensor 4
• a loud built-in siren
• up to 5 years
• Stays connected
• even through
• damp or flood-prone areas
• app, SMS, or email alerts
• Alexa, IFTTT, Home Assistant,
• Power down? WiFi out? No problem
• shutting off water the moment a leak is detected—no cloud, no delay, no worries