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Door Sensor

YoLink Door Sensor, 1/4 Mile World’s Longest Range Smart Home Wireless Window Door Sensor Work With Alexa IFTTT, Smart Sensor with Remote Monitor APP Notifications Open Reminder – YoLink Hub Required


  • 10 times Longer Range – Powered by LoRa technology, YoLink brings the longest receiving range (1/4 mile) in the market. Our long coverage enables its use in hard-to-reach areas such as basement, porch, guest suite, barns, greenhouse, etc.
  • Work with Alexa – Get voice announcements from Alexa Echo when door open or close; IFTTT Supported – Trigger event pipelines by using IFTTT, such as receiving Notifications, Emails, Calls, etc when the door or window is opened or closed
  • 5 times Longer Battery life – Powered by 2 AAA included Alkaline batteries with 5 years of battery life compared to 1 year of other top brands; Battery status will be updated and low battery alert will be sent within YoLink APP
  • Security Alerts – Automatically receive mobile notifications when doors or windows are opened or closed; Get a reminder when door keeps open; Check the history of all activities in the app
  • YoLink Hub Required but not included – YoLink Hub is the only central controller for YoLink devices. Without YoLink Hub, this sensor does not work on YoLink APP.


YoLink Technology
“YoLink” is a proprietary wireless technology provided by YoSmart. which is based on the Semtech’s LoRa wireless technology combined with the YoSmart smart home/building protocol, to provide the most advanced smart home/building devices solution. Compared to WIFI, Bluetooth, ZigBee, Z-Wave, and other smart home protocols, it has the advantages of low-power consumption, long-distance coverage (wall penetration), and anti-interference. It is the first smart building/home protocol that can be very easily setup and is a very low cost but creates a reliable, robust, and more secure IoT network.

Product Requirements:
1. A YoLink Hub, link: YS1603-UC YoLink Hub
2. A smartphone or tablet running iOS 9 or higher, Android 4.4 or higher.

Real-time Status – Monitor the real-time state of the door via YoLink App.
Open Remind – Remind you while the door is open for setup time.
Battery Status – Update battery level and send low battery alert.
YoLink Control – Trigger an action of certain YoLink devices without the internet.
Automation – Set up rules for the “IFTTT” function.

YoLink Door Sensor allows you to use your smartphone or tablet to detect the open and close your door from anywhere on YoLink APP. Feel more secure at home when you receive alerts when the doors or windows open and close.
With YoLink APP and Hub, you can also control or monitor other YoLink smart home devices, like Garage Door kit, Plugs, Buttons, Locks, Remote Controls, Switches, Outlets, Power Strip, Gas/Water Valves, Sensors and more, to build your own smart home system making your house smart.


  • Model: YS7704-UC
  • Button: Set Button
  • Voltage: 3V DC (2* AAA battery)
  • Trigger Distance: 18-25mm
  • Working Temperature: 0°C~40°C (32°F~104°F)
  • Working Humidity: 10%~90% (non-condensing)

Please Note:

  • YoLink Hub is required and it supports Wired Connection and 2.4G WiFi Connection.
  • YoLink products only work in the USA and Canada.

Package Content:
1 x YoLink Smart Door & Window Sensor
1 x Quick User Guide (please click User Guide YS7704-UC for a detailed Electric User Guide.)