--- product_id: 185757315 title: "YoLink Water Leak Sensor 1, 3-Pack, YS7903" brand: "yolink" price: "B/.161" currency: PAB in_stock: true category: "Yo Link" url: https://www.desertcart.com.pa/products/185757315-yolink-water-leak-sensor-1-3-pack-ys7903 store_origin: PA region: Panama --- # 2034 ft LoRa range 5+ years battery life Encrypted, no WiFi needed YoLink Water Leak Sensor 1, 3-Pack, YS7903 **Brand:** yolink **Price:** B/.161 **Availability:** ✅ In Stock ## Summary > 💧 Stay dry, stay smart—leak detection that never sleeps! ## Quick Answers - **What is this?** YoLink Water Leak Sensor 1, 3-Pack, YS7903 by yolink - **How much does it cost?** B/.161 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/185757315-yolink-water-leak-sensor-1-3-pack-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 - • **Ultra-Low Maintenance Power:** Includes replaceable AAA batteries that last over 5 years—no frequent charging or replacements needed. - • **WiFi & Internet Independent:** Operates flawlessly even when your WiFi or power fails, ensuring uninterrupted leak detection. - • **Seamless Smart Home Integration:** Works with YoLink Hub for real-time alerts via app, SMS, and email—stay connected wherever you are. - • **Set It & Forget It Installation:** Instant setup with no wiring—just place near vulnerable spots and gain peace of mind in seconds. - • **Unmatched Long-Range Connectivity:** LoRa tech delivers up to 2034 feet of reliable, obstruction-penetrating signal—perfect for sprawling homes and remote spaces. ## Overview The YoLink Water Leak Sensor 3-pack uses industrial-grade LoRa technology to provide up to 2034 feet of wireless range without relying on WiFi or internet. Designed for easy, no-hassle installation, it offers encrypted, reliable communication with the YoLink Hub (sold separately). Powered by included AAA batteries lasting over 5 years, it ensures continuous monitoring and instant alerts via mobile app, SMS, and email, making it ideal for protecting homes and remote properties from water damage. ## Description Buy YoLink Water Leak Sensor 1, 3-Pack, YS7903 | Leak Alerts via Mobile App, Email and SMS, Up to 5-Year Battery Life, LoRa YoLink Protocol Up to 2034 Feet, Hub Required: Leak Detection Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - NO WiFi WORRIES! YoLink devices communicate by LoRa, an industrial-grade protocol that provides up to 2034 feet open air range. Devices do NOT connect to your network or even to the internet; they communicate with the Hub (Not included!). Long range, obstruction penetration, no reliance on WiFi, and fully-encrypted communications provide more than most ask for from their smart home system! - SET IT & FORGET IT! Installs in seconds! The YoLink wireless Water Sensor could not be easier to install; just place near or under the equipment you wish to monitor. Suggested uses are near or under, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks, in or near sump pumps, and by any other location subject to water leaks and flooding. - EXTREME LONG RANGE! Powered by LoRa technology, the long-range yet low-power system offers the industry’s longest receiving range in the market (2034 feet). Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property. - NO WIFI, NO INTERNET, NO POWER? NO PROBLEM! Our patented Control-D2D device-to-device pairing, over our LoRa-based wireless network, allows for devices to be paired to each other, in such a way they will continue to operate, even if WiFi is flaky, the internet goes down, or the AC power goes out! - START SMART! A YoLink hub is required for full functionality, including for the app to work, to check battery level, etc, but your hub is compatible with a growing family of smart products for home and business! Search for B09FSS95G9 for a SpeakerHub (our audio, talking hub) or B07TQLKQLJ for the original Hub. - BATTERIES INCLUDED! Two replaceable AAA batteries, good for over 5 years, are included! - AVAILABLE AS A STARTER KIT! Search for B0BFR7WJQT - Hub Not Included. Hub Sold Separately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083Z5Z9HM | | Battery Description | Alkaline | | Best Sellers Rank | #4,422 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 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 (6,905) | | Item Dimensions L x W x H | 2.4"L x 2.4"W x 2.4"H | | 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 | | 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. | | Number of Items | 3 | | Power Source | Battery Powered | | Sensor Technology | Water Leak Sensor Technology | | UPC | 750258361643 | | Voltage | 3 volts | ## Product Details - **Brand:** YoLink - **Color:** White - **Compatible Devices:** YoLink Hub - **Power Source:** Battery Powered - **Product Dimensions:** 2.4"L x 2.4"W x 2.4"H ## Images ![YoLink Water Leak Sensor 1, 3-Pack, YS7903 - Image 1](https://m.media-amazon.com/images/I/519l0Q74TDL.jpg) ![YoLink Water Leak Sensor 1, 3-Pack, YS7903 - Image 2](https://m.media-amazon.com/images/I/31AghVt-aVL.jpg) ![YoLink Water Leak Sensor 1, 3-Pack, YS7903 - Image 3](https://m.media-amazon.com/images/I/516XnrEpqBL.jpg) ![YoLink Water Leak Sensor 1, 3-Pack, YS7903 - Image 4](https://m.media-amazon.com/images/I/51mqpnEf8BL.jpg) ![YoLink Water Leak Sensor 1, 3-Pack, YS7903 - Image 5](https://m.media-amazon.com/images/I/51jSL0zU6vL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Questions & Answers **Q: Can you replace the batteries?** A: 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! **Q: Is this a dumb proprietary system or does it ingrate with smart home technologies, ie Z-wave Zigbee etc?** A: 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! **Q: Do you have any water leak sensors that have audio as well as the app reminder? Or are these just app reminders?** A: 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. **Q: What frimware version do you have on these D or E? Tx** A: 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. ## Frequently Bought Together - 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 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 - YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required --- ## 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.com.pa/products/185757315-yolink-water-leak-sensor-1-3-pack-ys7903](https://www.desertcart.com.pa/products/185757315-yolink-water-leak-sensor-1-3-pack-ys7903) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-09-24*