---
product_id: 194385499
title: "YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant"
brand: "yolink"
price: "HK$650"
currency: HKD
in_stock: true
reviews_count: 7
category: "Yo Link"
url: https://www.desertcart.hk/products/194385499-yolink-lora-smart-door-and-window-sensor-3-pack-door
store_origin: HK
region: Hong Kong
---

# 0.25 mile LoRa range up to 5 years battery life easy peel & stick install YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant

**Brand:** yolink
**Price:** HK$650
**Availability:** ✅ In Stock

## Summary

> 🚪🔒 Secure your space, smartly and effortlessly.

## Quick Answers

- **What is this?** YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant by yolink
- **How much does it cost?** HK$650 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/194385499-yolink-lora-smart-door-and-window-sensor-3-pack-door)

## 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

- • **Effortless, No-Fuss Installation:** Peel, stick, and secure your perimeter in under a minute—no tools, no headaches.
- • **Offline Device-to-Device Pairing:** Keep your security system running even during internet or power outages with direct sensor-to-siren communication.
- • **Unmatched Long-Range Connectivity:** Stay connected up to a quarter mile away—perfect for sprawling homes and outbuildings.
- • **Smart Alerts & Automation Integration:** Get real-time notifications and automate your home with Alexa, IFTTT, and Home Assistant compatibility.
- • **Battery Life That Outlasts Your Busy Schedule:** Up to 5 years of reliable power means set it and forget it.

## Overview

The YoLink LoRa Smart Door & Window Sensor 3-Pack offers professional-grade security with an impressive 0.25 mile open-air range using LoRa technology, ensuring connectivity where WiFi can't reach. Featuring up to 5 years of battery life and simple peel-and-stick installation, it integrates seamlessly with Alexa, IFTTT, and Home Assistant for smart home automation. Unique device-to-device pairing guarantees continuous protection even during internet or power failures, making it an essential upgrade for any modern smart home or business perimeter.

## Description

desertcart.com : YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant : Electronics

Review: Unbeatable Reliability! The YoLink LoRa Smart Door & Window Sensor is a Game-Changer! - I've been slowly building out my smart home, and when it came to securing my doors and windows, I wanted something truly reliable. After trying a few other brands, I decided to give the YoLink LoRa Smart Door & Window Sensor a try, and I am absolutely blown away by its performance! This sensor has quickly become the cornerstone of my home security and automation. The installation was incredibly simple. It took me less than a minute per sensor to attach them to my doors and windows using the included adhesive. Pairing them with my YoLink Hub was equally effortless, and they were recognized instantly. No complicated wiring, no fussy setup – just quick and easy integration. What truly sets this sensor apart is its use of LoRa (Long Range) technology. This is not just marketing hype; it genuinely makes a massive difference in range and reliability. I have sensors on detached sheds and gates at the very edge of my property, and they connect flawlessly to my hub inside the house, something other smart home devices struggled with. I get instant notifications on my phone every time a door or window is opened or closed, without any dropped signals or false alarms. This consistent, dependable performance provides immense peace of mind. The battery life is also exceptional, thanks to LoRa's low power consumption. I haven't had to think about changing batteries since I installed them, which is a huge convenience compared to other sensors that drain batteries quickly. I've integrated these sensors into various automation routines, from turning on lights when a door opens to triggering security alerts, and they perform flawlessly every single time. The YoLink app is intuitive and provides clear status updates for all my sensors. In summary, if you're looking for a smart door and window sensor that you can truly depend on, with incredible range, rock-solid reliability, and effortless installation, look no further than the YoLink LoRa Smart Door & Window Sensor. It's a premium product that delivers on every promise and is an essential addition to any smart home. Highly, highly recommend!
Review: Awesome products! - Yolink products are wonderful. I have the driveway alarms, water sensors and door alarms, and plan to buy more of their products in the future. I have the door sensors on my house doors and 2 out building doors. There is no wifi outside the house, so I was delighted to see that Yolink offered an affordable solution to outside areas. It is a comfort to know I will get a notification if a door opens or someone enters the driveway, especially when I am not on property. Some feedback: - At first, I purchased just the main hub (not the speaker hub). I later purchased the speaker hub as well so I would get an audible notification in the house without relying on my phone notification. - The app works very well and in real-time. It gives me options as to how I want to be notified if an alarm is set off. - The door alarms have a very strong adhesive tape. Initially 2 of the indoor alarms fell off, but when put back up (with the existing adhesive), they have stayed in place. The outbuilding alarms have stayed up, despite severely cold weather for the few months they've been installed. If the adhesive does fail, I'm sure I can find more adhesive for them. However, it would be nice if the alarms were made with an option to screw them onto the door/frame. - Even though the hub needs wifi, the LoRa system perfectly reads the alarms installed outside of wi-fi range. Even in the metal outbuildings where wi-fi signal is completely blocked, the system can tell me down to the second when the doors were opened and closed. - Installation of the hub & alarms is fairly simple. I found hooking up the hub & alarms to go surprisingly well, and they haven't disconnected from each other either. Scan each alarm separately (they each have their own scan code), preferably before installing them to make it easier. The instructions don't clarify this, so don't assume you can scan the code on the box to set them all up.

## Features

- THAT WAS EASY! Installs in moments: scan the sensor's QR code, give it a name, peel off the pre-applied 3M brand mounting tape protective plastic, press the sensor and magnet to the door and frame, and you have added security to your home or business!
- WHY PAY A MONTHLY FEE, when you can secure it for free? Self-monitor and save when you take advantage of our many ways to be notified of alarms and off-normal events in and around your home or business. See "Know Now!" for more information!
- MORE THAN JUST A DOOR ALARM! Place a sensor on each exterior door and window to 'Protect Your Perimeter' Activate and control lighting. Place a sensor on your fridge/freezer door or lid and know if it was left open, to prevent food loss. Track activity in your home or business. Keep an eye on children and elderly loved-ones. Use the sensors to protect liquor & medicine cabinets, gun safes, storage lockers & boxes.
- DOOR AJAR! Our unique Door Left-Open reminder can be used to alert you to a door or window left open too long! You define the maximum time. Use our SpeakerHub, our audio hub, to play a tone or message, alerting you when a door is opened or left open too long.
- NOT YOUR FATHER'S DOOR SENSOR! This is a sophisticated electronic device, utilizing the latest technology. 24/7 cloud server device supervision monitors your system for online presence, signal strength and battery level, to ensure it will work when you need it! (Hub required, for full functionality)
- DEVICE-TO-DEVICE PAIRING: a unique feature, two or more devices can be paired together. Even if the internet is out and the power is down, they will carry out their paired actions. Pair your door sensors to a Siren Alarm, then turn it off when you want to "disarm" your system. Use a SirenFob or FlexFob to control your siren. Make your own custom security system!
- DON'T TRY THIS WITH WiFi! LoRa is short for Long-Range. Boasting up to a quarter-mile open-air range, and operating at the 900 MHz band, YoLink devices can be placed where your WiFi probably can't go, such as in basements, separate buildings, even on RVs and boats stored on your property! Prepare to be pleasantly surprised!
- SMART OR STANDALONE, you decide: for full-functionality and the full potential of your Door Sensor, a hub with an internet connection is required. Or, you can use device-to-device pairing to pair your door sensors directly to a siren - you can then manually arm/disarm your siren with a SirenFob (search B0BRCX6HVK). Search B09FSS95G9 for the SpeakerHub, or B07TQLKQLJ for the Original Hub.
- BATTERIES ARE INCLUDED! Six AA batteries, preinstalled, good for 2+ years standby, are included!
- Looking for a starter kit with hub? Search B0BZ88QB5P for SpeakerHub, or B088ZFGX3S for regular Hub. Looking for a Siren Alarm? Search B0887SMPKK. Looking for a garage door sensor? Search B07Z7QQV8K. Looking for a gate sensor or door/window/lid sensor for outdoor use? Search B08P1VQMCR

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083YYHC7M |
| Alert Type | Motion |
| Batteries | 6 AAA batteries required. |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Composition | Alkaline |
| Best Sellers Rank | #43 in Home Security Systems |
| Brand | YoLink |
| Color | 3-pack without hub |
| Compatible Devices | Smartphone |
| Connectivity Technology | Wireless |
| Control Method | App |
| Coverage | 1000Feet(Open Air) |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,456) |
| Date First Available | January 16, 2020 |
| Description Pile | Alkaline |
| Global Trade Identification Number | 00750258361636 |
| Included Components | Battery, Sensors, Siren |
| Installation Type | Mounting Tape |
| Item Package Quantity | 1 |
| Item Weight | 2.33 ounces |
| Item model number | YS7704-UC*3 |
| Manufacturer | YoSmart |
| Maximum Range | 0.25 Miles |
| Mounting Type | Door Mount |
| Package Dimensions | 6.38 x 4.49 x 1.61 inches |
| Part Number | YS7704-UC*3 |
| Power Source | Battery Powered |
| Sensor Technology | LoRa |
| Smart Home Compatibility | Smart Home Compatible |
| Style | 3 Door Sensors |
| UPC | 075025836163 750258361636 |
| Unit Count | 3 Count |
| Usage | Amateur, Inside, Professional |
| Voltage | 3 Volts |
| Warranty Description | 2 Years |

## Product Details

- **Brand:** YoLink
- **Color:** 3-pack without hub
- **Compatible Devices:** Smartphone
- **Connectivity Technology:** Wireless
- **Power Source:** Battery Powered

## Images

![YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant - Image 1](https://m.media-amazon.com/images/I/51z3QLBPloL.jpg)
![YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant - Image 2](https://m.media-amazon.com/images/I/71kJtkiY57L.jpg)
![YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant - Image 3](https://m.media-amazon.com/images/I/71gWBK6GrwL.jpg)
![YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant - Image 4](https://m.media-amazon.com/images/I/71G6o9-FW8L.jpg)
![YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant - Image 5](https://m.media-amazon.com/images/I/71IWkJ5t-8L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How can disable to notifications or disable the sensor during the day?**
A: In the Alarm strategy you can define the schedule or specific period of time to disable the alarm. You also can add different alarm strategy for each sensor or each group of sensors. It is very powerful and very flexible alarm strategy settings in the YoLink App. Thanks!

**Q: Are these outdoor use?**
A: YoLink Smart Door/Window Sensor is designed for indoor use because it is not waterproof. If you use it outdoor, please keep it away from rain or water.

**Q: Que cámara es compatible con yolink?**
A: Sorry, YoLink does not support Camera yet. The YoLink Camera is under developing and we don't have the available release date yet. Thanks!

**Q: How do I connect it to Alexa?**
A: You should have YoLink Hub first, then add YoLink hub and door sensor to YoLink app, go to Alexa->Skill->Search YoLink->Enable Skill. Thanks!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Unbeatable Reliability! The YoLink LoRa Smart Door & Window Sensor is a Game-Changer!
*by B***R on July 24, 2025*

I've been slowly building out my smart home, and when it came to securing my doors and windows, I wanted something truly reliable. After trying a few other brands, I decided to give the YoLink LoRa Smart Door & Window Sensor a try, and I am absolutely blown away by its performance! This sensor has quickly become the cornerstone of my home security and automation. The installation was incredibly simple. It took me less than a minute per sensor to attach them to my doors and windows using the included adhesive. Pairing them with my YoLink Hub was equally effortless, and they were recognized instantly. No complicated wiring, no fussy setup – just quick and easy integration. What truly sets this sensor apart is its use of LoRa (Long Range) technology. This is not just marketing hype; it genuinely makes a massive difference in range and reliability. I have sensors on detached sheds and gates at the very edge of my property, and they connect flawlessly to my hub inside the house, something other smart home devices struggled with. I get instant notifications on my phone every time a door or window is opened or closed, without any dropped signals or false alarms. This consistent, dependable performance provides immense peace of mind. The battery life is also exceptional, thanks to LoRa's low power consumption. I haven't had to think about changing batteries since I installed them, which is a huge convenience compared to other sensors that drain batteries quickly. I've integrated these sensors into various automation routines, from turning on lights when a door opens to triggering security alerts, and they perform flawlessly every single time. The YoLink app is intuitive and provides clear status updates for all my sensors. In summary, if you're looking for a smart door and window sensor that you can truly depend on, with incredible range, rock-solid reliability, and effortless installation, look no further than the YoLink LoRa Smart Door & Window Sensor. It's a premium product that delivers on every promise and is an essential addition to any smart home. Highly, highly recommend!

### ⭐⭐⭐⭐⭐ Awesome products!
*by L***I on February 14, 2026*

Yolink products are wonderful. I have the driveway alarms, water sensors and door alarms, and plan to buy more of their products in the future. I have the door sensors on my house doors and 2 out building doors. There is no wifi outside the house, so I was delighted to see that Yolink offered an affordable solution to outside areas. It is a comfort to know I will get a notification if a door opens or someone enters the driveway, especially when I am not on property. Some feedback: - At first, I purchased just the main hub (not the speaker hub). I later purchased the speaker hub as well so I would get an audible notification in the house without relying on my phone notification. - The app works very well and in real-time. It gives me options as to how I want to be notified if an alarm is set off. - The door alarms have a very strong adhesive tape. Initially 2 of the indoor alarms fell off, but when put back up (with the existing adhesive), they have stayed in place. The outbuilding alarms have stayed up, despite severely cold weather for the few months they've been installed. If the adhesive does fail, I'm sure I can find more adhesive for them. However, it would be nice if the alarms were made with an option to screw them onto the door/frame. - Even though the hub needs wifi, the LoRa system perfectly reads the alarms installed outside of wi-fi range. Even in the metal outbuildings where wi-fi signal is completely blocked, the system can tell me down to the second when the doors were opened and closed. - Installation of the hub & alarms is fairly simple. I found hooking up the hub & alarms to go surprisingly well, and they haven't disconnected from each other either. Scan each alarm separately (they each have their own scan code), preferably before installing them to make it easier. The instructions don't clarify this, so don't assume you can scan the code on the box to set them all up.

### ⭐⭐⭐⭐⭐ Review
*by O***R on November 27, 2021*

High quality item at fair price. Connected easily with simple instructions. No problems.

## Frequently Bought Together

- YoLink LoRa Smart Door & Window Sensor 3-Pack: Door Left-Open Reminders, up to 1/4 Mile Open-Air Range, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant
- YoLink LoRa 1/4 Mile Wireless Range Smart Motion Detector, Indoor Motion Sensor, Motion Detector, Alexa, IFTTT, YoLink Hub Required
- Smart Siren Alarm, Loud 110 dB, Wireless Alarm for Home Security/Intrusion/Burglar Alarm, Panic Alarm, Audible Alerts, Remote Control, Works with Alexa, Google, Home Assistant, IFTTT - Hub Required

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-03*