Is there any way to use the water leak sensor without buying an hub? I have Amazon Echo, would that work?

Sorry, no. YoLink Hub is required to set up YoLink Smart Water Leak Sensor. You can order YoLink Smart Hub from the link https://www.amazon.com/dp/B07TQLKQLJ or you can order our Smart Home Security Start kit which includes this Smart Leak Sensor, Link: https://www.amazon.com/dp/B07V246GCX

Is there an audible water leak alarm without using the app? Onboard alarm?

1. For the waterproof function of the product, we do not have a sound function for YoLink Smart Water Leak Sensor; 2. We will release a YoLink Siren soon which can connect multiple YoLink water leak sensors and other YoLink safety devices, with long distance coverage and alarm even without network connection; 3. Because of the long coverage distance of YoLink products, even if there is sound in the sensors, we still can't hear it, Alerting user's Smart Phone is more important. What's more, our YoLink Siren is even more comprehensive. 4. Reduce its own sound function, which can be waterproof and lower power consumption. The battery life of YoLink Water Leak Sensor can last for more than 5 years.

can I use to turned a switched off if it detects a tank reached a level of water?

You will need a yolink outlet or a yolink wifi togle switch ( depending on the device you are wanting it to turn off ) to link the water sensor together. Then set an "if" scenario and you should be good to go.

why is there such a stark difference in battery life between water sensor 1 vs 2? version 1 is up to 5 years while version 2 only up to 2 years

Water Leak Sensor 2 has a sounder. You can optionally turn off the sounder, but since that draws current from the batteries, it is factored into the battery calculations we used. We tend to lean towards the more worse-case scenario (more frequent use, with sounder enabled) but your experience with it will vary and it could very well be closer to 4 years than 2. Eric with YoSmart

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💧 Stay dry, stay secure—detect leaks before they flood your life!

ROCK SOLID SECURITY - Devices never connect to your WiFi or internet directly; all data is encrypted and routed through a secure hub for finance-grade protection.
SMART ALERTS CONTROL - Instant leak notifications via app with free texts included, plus optional SMS and automated call upgrades for total control.
SET IT FORGET IT INSTALLATION - Plug-and-play design installs in seconds—just place near potential leak sources and relax.
ULTRA LOW POWER ULTRA LONG LIFE - Runs on 2 AAA batteries lasting up to a decade, minimizing maintenance and maximizing peace of mind.
UNMATCHED LONG RANGE CONNECTIVITY - LoRa tech delivers a massive ¼ mile wireless range—perfect for basements, garages, and remote spots WiFi can’t reach.

The YoLink Water Leak Detector uses industrial-grade LoRa technology to provide the longest wireless range in the market (¼ mile) with superior wall penetration and ultra-low power consumption. It installs effortlessly near water sources and communicates securely through a dedicated hub, never relying on WiFi or direct internet connections. With up to 10 years of battery life and encrypted data transmission, it offers professional-grade leak detection and peace of mind for modern smart homes and remote locations.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Battery Description	Alkaline
Number of Batteries	2 AAA batteries required. (included)
Voltage	3 Volts
Control Method	App
Mounting Type	Wall Mount
Maximum Range	4E+2 metres
Sensor Technology	LoRa
UPC	850024791480 750258361438
Manufacturer	YoSmart
Model	YS7903
Model Name	Water Leak Sensor
Product Dimensions	6.1 x 6.1 x 2.2 cm; 80 g
Batteries	2 AAA batteries required. (included)
Item model number	YS7903
Mounting Hardware	Batteries, Detector
Number of items	1
Batteries Included	Yes
Batteries Required	Yes
Battery cell composition	Alkaline
Does it contain liquid?	No
Includes Rechargeable Battery	No
Country of Origin	USA
Item Weight	80 g

Water Leak Detector, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor, Hub Required

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