How to install Aqara Door and Window Sensor? Can I change the position of the sensor unit and the magnet unit? 1. Line up the primary sensor and the magnet according to the mounting line as shown in the user manual. Attach the primary sensor to the fixed surface and the magnet to the surface that will be opened; 2. The distance between the primary sensor and the magnet should be less than 22mm; 3. The exact position can vary, but ensure that the primary sensor and the magnet are installed in alignment. 4. Because of the complex nature of an indoor environment, adjusting the position of the sensor hub with the Door and Window Sensor can improve the overall result. 5. Be sure to avoid installing sensors on metal surfaces because of the adverse effect this can have on the signal.

Installation location and precautions. Turn the magnet 90 degrees. It is better to install the sensor on a fixed door frame. Attaching the small magnet to the door is the best way to protect the sensor. Although the primary Door and Window Sensor should be less than 22mm from the magnet, they should not be installed too close together to avoid contact and the damage that may occur if they are knocked on to the ground.

What is the effective range between the Hub and the Aqara Door and Window Sensor? In a complex indoor environment, This distance will need to be reduced if there is a wall between them to ensure good connectivity.

Why does the Aqara Door and Window Sensor fail to connect? How to reconnect? Possible reason: 1. Operation error. Please add the device according to the adding method again. 2. The device is too far apart from the Hub. Please move the device closer to the Hub. 3. There are too many devices under the Hub.

Where to download the user manual of it? You can refer to this post: Xiaomi Aqara Window Door Sensor user manual in multi languages

What is the max distance between Aqara Smart Window Door Sensor and gateway? 20 meters without obstacle.

Can i exchange the main part and he magnet when i install it? Yes, you can, please mind the distance.

How to judge whether the connected Aqara window door sensor is valid and can be used normally? You can enter the warning mode, then check the daily on the App, or the gateway alarm, which means the sensor is normal.

What is the function of the Aqara window door sensor? 1. The window door sensor can be installed in a position where the door or window can be opened and closed, as a reminder of abnormal opening; 2. Can be used as a linkage of other electrical appliances, when the opening and closing of doors and windows is sensed, the control of other electrical switches.

Why the sensor is not working? 1. Please check the sensor distance is less than 22 mm; 2. Reset the Aqara sensor.

How to turn on / off the warning mode? You can open is in the App setting, also you can double click the power button to turn on / off the warning mode.

How to reset the Aqara window door sensor? Long press the reset hole for 3 seconds.

Why i can't bind the sensor with the gateway? Make sure the wifi signal is good, also you can reset the sensor.

Can this item be shipped to my country? We can deliver orders to most countries. For a detailed explanation of each shipping method, destination and approximate delivery time, please check our website: https://www.gearbest.com/about/shipping-methods.html GearBest shipping memo: save money on delivery by choosing the best option

The smart doorbell is offline ● Make sure your Wi-Fi network is working properly. ● Restart the camera. ● Restart the Wi-Fi router. ● Check if your network has enough bandwidth. ● Check if the Wi-Fi signal is disturbed. The detail you can read this post: Smart doorbell common issues and solution

Wi-Fi network is not displayed in the app during the installation. Your doorbell may be too far away from your Wi-Fi router, the wireless signal is disrupted or there are other problems with your Wi-Fi network.

The camera is offline and can't reconnect. You can follow the steps below to solve problems. ● Make sure that the camera is plugged in and receiving power. ● Check whether the camera is warm or cold to the touch ● Move the camera ● Restart the camera ● Restart the router ● Check the settings of your Wi-Fi network or router ● Make sure your router is on the list of incompatible devices ● Try turning off other wifi-connected devices ● Reset the camera

The video is blurry and spotty ● Remove the sticker on the lens. ● Remove dust or dirt from the lens with a soft, lint-free cloth.