YoLink Water Leak Sensor 4 (3-Pack) - 105dB Alarm, LoRa Range, SMS/Email/Push Alerts (Hub Required)

Protect Your Space with Reliable, WiFi-Free Leak Detection

Meet YoLink Water Leak Sensor 4, a wireless, long-range detector designed to monitor critical zones without relying on WiFi. It communicates with a central Hub over LoRa and can send alerts to you even if your internet goes down. Built to withstand damp environments, this sensor blends into utility spaces while providing clear indications when action is needed.

Long-Range Reliability That Keeps You Covered

Powered by LoRa, the sensor can cover challenging layouts with up to ¼ mile open-air range. Its signal penetrates walls and clutter, helping you monitor basements, outdoor spaces, sheds, garages, and remote outbuildings. The private, hub-based communication preserves network privacy while staying responsive.

• LoRa range up to ¼ mile with obstruction-penetrating reliability
• Hub-based communication minimizes network exposure and preserves privacy

Simple Setup and Flexible Placement

Install in seconds and position it near the equipment you want to watch—think toilets, water heaters, laundry machines, dishwashers, sinks, or fish tanks. The compact sensor stays out of the way in tight spaces and adapts to basements, garages, or utility closets.

• Quick, tool-free placement for rapid monitoring
• Effective in diverse indoor environments like basements and utility rooms

Smart Alerts That Help You Respond Fast

Receive notifications via SMS, email, and push, and tap into a growing ecosystem with Alexa and IFTTT integrations. The system is designed to deliver timely, actionable information, enabling you to verify conditions and act promptly.

• SMS, email, and push alerts for timely awareness
• Supports automation through Alexa and IFTTT

Durable, Weather-Ready Design and Long Battery Life

With IP66 waterproof protection and a built-in freeze warning, the sensor is built to endure a variety of conditions and seasons. Two replaceable AAA batteries are included, offering long-lasting performance with minimal maintenance. In everyday use, you can place it near laundry drains, outdoor taps, or utility sinks without worry.

• IP66 rating for indoor resilience and occasional exposure to moisture
• Freeze warning helps you guard against frozen pipes
• Two batteries included for extended operation

What You Get and How It Fits

This listing includes a 3-pack to cover multiple risk points and a hub-enabled system for full functionality. Hub not included, but compatibility spans a broad YoLink ecosystem, allowing you to scale as needs grow.