Mi Light Detection Sensor FAQ

A: The control hub you want to connect to, needs to support the Zigbee 3.0 protocol.

Place the sensor closer to the control hub, open the plugin for the control hub in the Mi Home or Xiaomi Home app. Then add the Mi Light Detection Sensor, and follow the instructions given by the app. Press and hold the button on the sensor for 5 seconds until the indicator blinks three times to indicate that the connection was successful.

 

A: Press the reset button on the sensor, after successfully connecting the sensor at its installed location. A notification sound from the control hub indicates that the current location is appropriate. Otherwise, place the sensor closer to the control hub and try again.

 

A: （1） Place it as close to the control hub as possible, and verify if the installation location is appropriate before the installation.

（2） Use the adhesive sticker to stick it to any surface, use its magnet to stick it to a metal surface, or place it directly on a level surface.

（3）Do not place it in a location that is exposed to rain or steam.

（4） The installation location should not obstruct light so that ambient light can be detected. It is recommended to point the lens at the light source or the to-be-detected area. Avoid installing it in corners, behind furniture, or underneath tables or desks.

 

A: （1）It may be placed too far from the control hub, try moving it closer to the control hub.

（2） The battery may be low, and needs to be replaced.

 

 

A: （1） Press the button to verify the connection, and simultaneously upload the current light intensity data to the control hub.

（2） Press and hold the button to add and reset the device.

 

A: No, it cannot be connected directly. You need to connect the control hub to your phone first, and then connect the light detection sensor to the control hub.

 

A: It is suitable for indoor environments with operating temperatures in the range of -10 to 50°C, and operating humidity in the range of 0 to 95 % (without condensation).

 

A: The sensor can be linked with other smart devices in your Mi Home or Xiaomi Home app. For example, when the light intensity is higher than the set threshold, the smart curtain will close automatically; when the light intensity is less than the set threshold, it links with the smart switch or smart bulb to turn on the light.

 

A: The maximum distance in indoor environments is about 10 meters. The actual maximum distance depends on the complexity of the environment. However, test data show that in an open and obstacle free environment, the communication distance can be up to 65 meters.

 

A: （1） The sensor can still be triggered, and after being triggered, the corresponding action will be carried out according to the settings in the app.

（2） In case the network is interrupted, the app cannot control nor respond. However, basic local functions will still work.

 

 

A: Make sure the distance between the control hub and the sensor is within 10 m. If the issue persists, it is recommended to install the sensor closer to the control hub.

 

 

A: The battery may be depleted or the indicator light is faulty. Please contact after sales service, if the issue persists after replacing the sensor's battery.

 

 

A: The battery of the light detection sensor is designed to last for up to 2 years. The actual duration depends on the environment the sensor is used in.

 

A: （1） When the sensor is attached to a surface with the adhesive sticker, please hold its housing and turn it counterclockwise to separate the housing from the bottom cover. Replace the CR2450 cell battery and install the new battery correctly.

（2）When the sensor is not attached to a surface with the adhesive sticker, use a coin to turn the bottom cover counterclockwise and open it to replace the cell battery.

 

A: The unit for light intensity is lux, and is used to indicate the intensity of light and the extent to which the surface of an object is illuminated.

Common 7 W LED bulbs have a light intensity of about 200–300 lux at a distance of 1.5 m. The typical ambient light intensity of an office is about 320–500 lux. In summer, the light intensity of direct sunlight can be as high as 100,000 lux.

 

A: The sensor uses the Zigbee 3.0 protocol, which is a wireless IoT (Internet of Things) protocol based on the IEEE 802.15.4 standard. Its advantages are: a reliable connection, low power consumption, scalability, security, and stability.