--- product_id: 172493031 title: "YoLink Water Leak Sensor 1, YS7903" brand: "yolink" price: "KSh5916" currency: KES in_stock: true category: "Yo Link" url: https://www.desertcart.co.ke/products/172493031-yolink-water-leak-sensor-1-ys7903 store_origin: KE region: Kenya --- # ¼ mile LoRa range 5+ years battery life Encrypted device-to-device YoLink Water Leak Sensor 1, YS7903 **Brand:** yolink **Price:** KSh5916 **Availability:** ✅ In Stock ## Summary > 🚨 Stay leak-proof anywhere—because your smart home deserves the longest reach! ## Quick Answers - **What is this?** YoLink Water Leak Sensor 1, YS7903 by yolink - **How much does it cost?** KSh5916 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/172493031-yolink-water-leak-sensor-1-ys7903) ## Best For - yolink enthusiasts ## Why This Product - Trusted yolink brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Home Ready:** Seamlessly integrates with Alexa, IFTTT, and YoLink Hub for total control. - • **Set It & Forget It:** Instant install—just place near vulnerable spots and relax. - • **5+ Years Battery Life:** Long-lasting AAA batteries included for years of uninterrupted protection. - • **Unmatched ¼ Mile Range:** Industry-leading LoRa tech cuts through walls & WiFi dead zones effortlessly. - • **WiFi & Internet Independent:** Operates flawlessly even when your network or power fails. ## Overview The YoLink Water Leak Detector leverages industrial-grade LoRa technology to deliver the longest wireless range in the market—up to ¼ mile in open air—ensuring reliable water leak detection even in WiFi-challenged areas like basements and outbuildings. With encrypted device-to-device communication, it operates independently of WiFi, internet, or power outages. Easy to install and powered by replaceable AAA batteries lasting over 5 years, it integrates smoothly with Alexa, IFTTT, and the YoLink Hub, making it a must-have for proactive, tech-savvy homeowners and managers. ## Description YoLink Water Leak Sensor 1, YS7903 | Leak Alerts via Mobile App, Email and SMS, Up to 5-Year Battery Life, LoRa YoLink Protocol Up to 2034 Feet, Hub Required: desertcart.com: Industrial & Scientific ## Features - Catch leaks at home or away: Includes 1 Water Leak Sensor 1 unit; YoLink hub sold separately. Get app, email and SMS alerts through a powered, online YoLink hub (SMS limits apply). Name each sensor by room so you know where to check. Sensors are silent, with no built-in siren. - LoRa coverage up to 2034 feet: Built on Semtech LoRa technology, sensors communicate with the hub using a low-power radio link. Monitor basements, laundry rooms and other indoor leak-prone areas across large properties. Up to 2034 feet (620 meters) in open air; walls, metal and placement affect actual range. - Add automatic shutoff, even during outages: Control-D2D lets a sensor directly trigger multiple compatible YoLink shutoff devices, including EVO, Bulldog, motorized valves and FlowSmart ultrasonic meter/shutoff systems. Once paired, local control works without internet or hub power while sensors and shutoff devices remain powered and in range. Choose battery-powered shutoff options for operation during AC outages. Shutoff hardware sold separately. - Up to 5 years of battery life: Each sensor includes 2 installed, replaceable AAA batteries for fewer battery changes under sinks and behind appliances. Low-power LoRa helps reduce maintenance. Battery life varies with usage, activity and temperature; check battery status in the app. - Plug, scan and place: Use an existing YoLink hub, or add one for app features. Scan device QR codes in the YoLink app and place sensors near sinks, water heaters or washing machines. Top and bottom probes detect drips and pooling water. IP68-rated sensor housing; indoor use only and avoid continuous submersion. No sensor wiring or individual Wi-Fi pairing required. - One hub for your growing smart home: A YoLink hub supports 300+ YoLink devices. Choose from 100+ products, including leak sensors, shutoff controls, door and motion sensors, smoke detectors and lighting controls. Manage compatible devices in one app; additional devices sold separately. Designed in the USA, with YoLink customer support for setup, troubleshooting and expansion. - Choose the right sensor: Sensor 1 is silent. For built-in 105 dB alarms, choose Sensor 4 kits (ASIN B0CCT7TH98). New-generation Class E Sensor 5 kits (ASIN B0HKSCPQ4M) add 110 dB alarms, up to 12-year AA lithium battery life, accurate temperature readings, rapid-change alerts, app settings updated in seconds and Find Device beeping. Class E app features require an online hub; battery life varies. These are separate products, not included. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Z7QWJBP | | Best Sellers Rank | #3,554 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Water Detectors & Alarms | | Brand | YoLink | | Brand Name | YoLink | | Current Rating | 3 microamps | | Customer Reviews | 4.6 out of 5 stars 6,980 Reviews | | Included Components | Valve Controller | | Item Dimensions | 2.44 x 2.44 x 0.96 inches | | Item Highlight | Leak Alerts via Mobile App, Email and SMS, Up to 5-Year Battery Life, LoRa YoLink Protocol Up to 2034 Feet, Hub Required | | Item Type Name | Water Leak Sensor | | Item Weight | 0.08 kg | | Item dimensions L x W x H | 2.44 x 2.44 x 0.96 inches | | Manufacturer | YoSmart | | Material | Plastic | | Material Type | Plastic | | Model | YS7903 | | Mounting Type | Protruding | | Number of Items | 1 | | Part Number | YS7903 | | Specific Uses For Product | Amateur, Inside, Professional, indoor use only | | Style | 0dB, without hub | | Style Name | 0dB, without hub | | UPC | 850024791480 750258361438 | | Unit Count | 1 Count | | Warranty Description | 2 Years | ## Product Details - **Brand:** YoLink - **Item Weight:** 0.08 kg - **Item dimensions L x W x H:** 2.44 x 2.44 x 0.96 inches - **Material:** Plastic - **Style:** 0dB, without hub ## Images ![YoLink Water Leak Sensor 1, YS7903 - Image 1](https://m.media-amazon.com/images/I/51LUzFXo-yL.jpg) ![YoLink Water Leak Sensor 1, YS7903 - Image 2](https://m.media-amazon.com/images/I/710iDlwE+gL.jpg) ![YoLink Water Leak Sensor 1, YS7903 - Image 3](https://m.media-amazon.com/images/I/81dCB9ysdbL.jpg) ![YoLink Water Leak Sensor 1, YS7903 - Image 4](https://m.media-amazon.com/images/I/91l2SvJ12JL.jpg) ![YoLink Water Leak Sensor 1, YS7903 - Image 5](https://m.media-amazon.com/images/I/91Z922nLwDL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Questions & Answers **Q: Is there any way to use the water leak sensor without buying an hub? I have Amazon Echo, would that work?** A: 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 **Q: Is there an audible water leak alarm without using the app? Onboard alarm?** A: 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. **Q: can I use to turned a switched off if it detects a tank reached a level of water?** A: 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. **Q: 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** A: 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 ## Frequently Bought Together - YoLink Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water Leak Sensor, Alexa, IFTTT, Hub Required - YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required - YoLink Smart Home Starter Kit: Hub & Water Leak Sensor 4-Pack, SMS/Text, Email & Push Notifications, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Home Assistant --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.ke/products/172493031-yolink-water-leak-sensor-1-ys7903](https://www.desertcart.co.ke/products/172493031-yolink-water-leak-sensor-1-ys7903) --- *Product available on Desertcart Kenya* *Store origin: KE* *Last updated: 2026-11-09*