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

Product ID: 353334502

Details

Brand
YoLink
Colour
White
Compatible devices
YoLink Hub
Power source
Battery
Product dimensions
6.4L x 6.4W x

📡2034 ft LoRa range

🔋5+ years battery life

🔒Encrypted device-to-device

MX$3692

Duties & taxes included

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Description

💧 Stay dry, stay smart—never miss a leak again!

INSTANT SMART ALERTS - Receive SMS, email, and push notifications the moment water is detected—stay ahead of costly damage wherever you are.
RELIABLE OFFLINE OPERATION - Patented Control-D2D pairing keeps sensors alert even if WiFi, internet, or power fail—your leak alerts never miss a beat.
UNMATCHED LONG RANGE COVERAGE - LoRa tech delivers up to 2034 feet open-air range—perfect for basements, garages, and remote spots beyond WiFi reach.
SET IT FORGET IT INSTALLATION - Plug-and-play design lets you deploy sensors in seconds—no tech headaches, just peace of mind.
BATTERY LIFE THAT OUTLASTS WORRIES - Powered by replaceable AAA batteries lasting over 5 years—no monthly fees, no constant charging.

The YoLink Water Leak Sensor 3-Pack uses industrial-grade LoRa technology to provide ultra-long-range, encrypted water leak detection without relying on WiFi or internet. Designed for easy installation near vulnerable home appliances, it sends instant SMS, email, and push notifications via the YoLink Hub (sold separately). With over 5 years of battery life and patented device-to-device communication, it ensures reliable alerts even during power or network outages—making it an essential smart home safeguard for proactive homeowners.

Specifications

ASIN	B083Z5Z9HM
ASIN	B083Z5Z9HM
Batteries	6 AAA batteries required.
Battery Description	AAA
Best Sellers Rank	#14,099 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #47 in Safety Sensors & Detectors
Brand	YoLink
Color	White
Compatible Devices	YoLink Hub
Control Method	App
Customer Reviews	4.7 4.7 out of 5 stars (1,005)
Customer reviews	4.7 4.7 out of 5 stars (1,005)
Date First Available	28 February 2020
EU Spare Part Availability Duration	5 Years
Item Dimensions L x W x H	6.4L x 6.4W x 2.5H centimeters
Item model number	YS7903
Manufacturer	YoLink
Manufacturer	YoLink
Maximum Range	1320 Feet
Mfr Part Number	YS7903-UC*3
Model Number	YS7903
Mounting Type	Tabletop Mount
Number of Batteries	6 AAA batteries required.
Number of Items	3
Number of Packs	3
Power Source	Battery Powered
Product Dimensions	6.4 x 6.4 x 2.5 cm; 249 g
Sensor Technology	LoRa
UPC	750258361643
Voltage	3 Volts

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MX$3692

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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