Can you replace the batteries?

Yes, there are rubber tips on the 4 corners of the bottom, you can remove them and unscrew 4 screws and open the sensor, to replace two AAA batteries. The battery can run more than 5 years. You can search on YouTube video of how to change the YoLink water sensor's battery and can find the videos. Thanks!

Is this a dumb proprietary system or does it ingrate with smart home technologies, ie Z-wave Zigbee etc?

It is not Zigbee, WiFi or Z-Wave wireless technologies, all these wireless technologies only work for short range. The YoLink system use the longest wireless range and lower power consumption. It works with the YoLink hub and can be integrate to other system through the Alexa routines, IFTTT or YoLink's API. Thanks!

Do you have any water leak sensors that have audio as well as the app reminder? Or are these just app reminders?

These 3 pack leak sensors don't have build in audio sound. We have YoLink water leak sensor 2 which has build in sound, both them have app push notifications, emails and text message for leak alert.

What frimware version do you have on these D or E? Tx

Mine came with 030E installed. The sensors I bought previously had 030D installed and still aren't being offered the 030E update even though they are the exact same model number. I also don't know the difference between 030D and 030E as they don't seem to publish any firmware changelog that I can find.

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YoLink Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required

YoLink Water Leak Sensor 3-Pack, LoRa Up to 1/4 Mile Open-Air Range Smart Water Leak & Flood Detector, SMS/Text, Email & Push Notifications, w/Alexa, IFTTT, Home Assistant - YoLink Hub Required

Product ID: 185757315

Details

Brand
YoLink
Color
White
Compatible Devices
YoLink Hub
Power Source
Battery
Product Dimensions
2.4"L x 2.4"W

📡¼ mile LoRa range

📲Instant multi-channel alerts

🔋5+ years battery life

€ 85.22

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay dry, stay connected—leak detection that’s always a step ahead!

RELIABLE OFFLINE OPERATION - Patented device-to-device pairing keeps sensors active even if WiFi, internet, or power fail.
SMART ALERTS WHEREVER YOU ARE - Receive real-time SMS, email, and push notifications plus Alexa, IFTTT, and Home Assistant integration.
UNMATCHED LONG RANGE COVERAGE - LoRa tech delivers up to 1,320 feet open-air range—perfect for basements, garages, and remote spots beyond WiFi reach.
BATTERY LIFE THAT OUTLASTS MOST - Includes 2 AAA batteries per sensor, lasting over 5 years—no frequent replacements needed.
SET IT FORGET IT INSTALLATION - Quick, wireless setup means no hassle—just place near vulnerable water sources and relax.

The YoLink Water Leak Sensor 3-Pack uses industrial-grade LoRa technology to provide an ultra-long ¼ mile wireless range with encrypted communication, ensuring reliable water leak detection even in WiFi dead zones. With easy installation, multi-channel smart alerts, and a robust 5+ year battery life, it’s designed for professionals who demand seamless, worry-free home or business water monitoring. Requires YoLink Hub for full functionality.

Specifications

ASIN	B083Z5Z9HM
Battery Description	Alkaline
Best Sellers Rank	#1,576 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Water Detectors & Alarms
Brand	YoLink
Color	White
Compatible Devices	YoLink Hub
Control Method	App
Customer Reviews	4.6 4.6 out of 5 stars (6,792)
Item Dimensions L x W x H	2.4"L x 2.4"W x 2.4"H
Manufacturer	YoSmart
Maximum Range	1320 Feet
Mfr Part Number	YS7903-UC*3
Model Number	YS7903
Mounting Type	Tabletop Mount
Number of Batteries	6 AAA batteries required.
Power Source	Battery Powered
Sensor Technology	Water Leak Sensor Technology
Smart Home Compatibility	Smart Home Compatible
UPC	750258361643
Voltage	3 Volts

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