Motion Sensor has a build-in illuminance sensor. It detects the brightness of the room and provides more information for smat lighting. E.g. If some one passes by and the indoor light is weak, it turns on the night light automatically. You can rotate 180 of the Motion Sensor and adjust the detection angle with the sensor stand and sticker Multiple placement, suitable for different living environment. No tools required for installation. You can simply place it or paste it on a surface to use. High Quality Craft. Motion Sensor adopts Japanese infrared sensor to detect human motion through heat and US Polyolefin Fresnel lens for high precision detection. Made of anti-UV materials, the shell is color fade-less. With moisture proof treatment, it works properly even in humid environment. The high quality fireproof material makes it safe to use. With the response time of 15 milliseconds, the switch will provide you a rapid and convenient operation experience. With Mi Smart Devices, you can create magical scenes with your imagination. Before you go to bed, the air conditioner in the living room turns off; when you wake up at night, the night light lights up automatically. You can also link with other Mi smart devices to create more scenes, and make and fun. Simply place the Motion Sensor beside TV, door or bed and it will trigger other smart devices according to your motion. color:White Material:plastic Package Contents: 1 x Human Body Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.