Attentions:
1) Interference factors: The technology belongs to electromagnetic wave detection sensors, and active non-living objects will cause false alarms. The movement of metals and liquids (not penetrated) will cause misjudgments. Usually, electric fans, pets or birds close to the detection range occasionally move, and the shaking of metal curtains will cause misjudgment. These interference items cannot be ruled out, and you need to plan or adjust the installation location. In addition, it needs to be fixedly installed, and vibration and shaking will cause false alarms.
2) Non-interference factors: Electromagnetic wave scanning will penetrate human clothes, curtains, thin wood panels, gypsum partition walls, glass and other low-density objects. It is necessary to consider the installation location according to the detection range of the application scenario.
3) Semi-interference factor: It is not suitable to directly face the air conditioner if it is judged that the human presence exists. The internal motor of the air conditioner can cause misjudgment. It is required that the product does not directly face the air conditioner or is in the same direction as the air conditioner. Advise to install it at least 1.5m far away from air conditioner or outdoor air. Also assure that it is at least 0.5m away from exhaust fan.