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Thank you for purchasing YoLink products! We appreciate you trusting YoLink for your smart home & automation needs. Your 100% satisfaction is our goal. If you experience any problems with your installation, with our products or if you have any questions that this manual does not answer, please contact us right away. See the Contact Us section for more info.
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The following icons are used in this guide to convey specific types of information:
Very important information
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Please note: this is a quick start guide, intended to get you started on the installation of your Door Sensor. Download the full Installation & User Guide by scanning this QR code:
Installation & User Guide
You can also find all guides and additional resources, such as videos and troubleshooting instructions, on the Door Sensor Product Support page by scanning the QR code below or by visiting: https://shop.yosmart.com/pages/door-sensor-product-support
Your Door Sensor connects to the internet via a YoLink hub (SpeakerHub or the original YoLink Hub), and it does not connect directly to your WiFi or local network. In order for remote access to the device from the app, and for full functionality, a hub is required. This guide assumes the YoLink app has been installed on your smartphone, and a YoLink hub is installed and online (or your location, apartment, condo, etcetera, is already served by a YoLink wireless network).
Semi-circle
Back Shell
Includes two AAA non-rechargeable batteries
![]() | Blinking Red Once, then Green Once Device turned on |
![]() | Blinking Red And Green Alternately Restoring to Factory Defaults |
![]() | Blinking Green Connecting to Cloud |
![]() | Slow Blinking Green Updating |
![]() | Fast Blinking Green Control-D2D Pairing in Progress |
![]() | Blinking Red Once Device alerts or device is connected to the cloud and is functioning normally |
![]() | Fast Blinking Red Control-D2D Unpairing in Progress |
![]() | Fast Blinking Red Every 30 Seconds Batteries are low; please replace the batteries |
Press the SET button briefly
Observe the LED blinks red then green
If you are new to YoLink, please install the app on your phone or tablet, if you have not already. Otherwise, please proceed to the next section.
Scan the appropriate QR code below or find the "YoLink app" on the appropriate app store.
Apple phone/tablet iOS 9.0 or higher
Android phone/ tablet 4.4 or higher
Open the app and tap Sign up for an account. You will be required to provide a username and a password. Follow the instructions, to set up a new account. Allow notifications, when prompted.
You will immediately receive a welcome email from no-reply@yosmart.com with some helpful information. Please mark the yosmart.com domain as safe, to ensure you receive important messages in the future.
Log in to the app using your new username and password.
The app opens to the Favorite screen. This is where your favorite devices and scenes will be shown. You can organize your devices by room, in the Rooms screen, later.
Refer to the full user guide and online support for instructions on the use of the YoLink app.
Before installing your new Door Sensor, it is best if you understand how it works. The Door Sensor is made up of two parts. The smaller part is referred to as the magnet, while the larger part is typically referred to as the sensor or door sensor. The larger part contains the batteries and the electronics, as well as a reed switch. When the magnet is near the sensor, its magnetic force causes the reed switch to close and signal the sensor that the door is closed.
The door sensor has a maximum distance between it and the magnet, while it will indicate the door is closed. This is often referred to as the "gap". The Door Sensor has a maximum gap of around ¾" or around 19 millimeters. The door material, such as steel versus wood, can adversely impact this distance.
Refer to Figure A. The sensor and magnet each have a semi-circle engraved into the housing. The optimal placement of magnet and sensor will result in the two semi-circles placed next to each other to form a circle. But the magnet can be placed on a higher, or lower, plane (or level), than the sensor, as shown in Figure B. Also, the magnet can be turned at an angle from the sensor, as shown in Figure C (90 degrees, as shown here, or less than 90 degrees, for angled or sloped molding). When determining the appropriate location, placement and orientation of the Door Sensor parts, you can view the status of the door sensor in the YoLink app, as well as use the sensor's LED indicator (which illuminates briefly when the door is opened) to check your installation.
Please note, the Door Sensor is intended for indoor use. Consider our Outdoor Contact Sensor for outdoor locations, such as swing gates. For garage doors, consider our Garage
Door Sensor. For special applications, our Outdoor Contact Sensor can be used in conjunction with specialized contacts, such as chain link fence gate contacts.
The Door Sensor can be used on many types of standard "man" doors, both swing and sliding type, sliding glass doors, windows, lids, hatches, cabinet and pantry doors, and even in or on drawers and boxes.
Refer to the full user guide for additional diagrams and additional tips on sensor placement for popular door and window types.
Before installing the Door Sensor, consider the following:
Refer to the full installation and user guide to complete the setup of your Door Sensor.
We are here for you, if you ever need any assistance installing, setting up or using a YoLink app or product!
Need help? For fastest service, please email us 24/7 at service@yosmart.com
Or call us at 831-292-4831 (US phone support hours: Monday - Friday, 9AM to 5PM Pacific)
You can also find additional support and ways to contact us at: www.yosmart.com/support-and-service Or scan the QR code:
Finally, if you have any feedback or suggestions for us, please email us at feedback@yosmart.com
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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