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Microwaves are a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz (1 m) and 300 GHz (1 mm). Different sources define different frequency ranges as microwaves; the above broad definition includes both UHF and EHF (millimeter wave) bands. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 0.3 m and 3 mm).

As an electromagnetic wave with wave-particle duality, the basic properties of microwaves usually show three characteristics of penetration, reflection and absorption. For glass, plastics, and porcelain, microwaves almost pass through and cannot be absorbed. For water and food, they absorb microwaves and heat themselves up. For metal products, microwaves are reflected.

Using living body detection technology, it can detect movement, micromotion and breathing. Realize real presence induction; strong anti-interference ability, not interfered by air conditioner, exhaust fan, etc.

Need a professional installer;
Can not penetrate metal materials;
The sensing distance is related to many factors;
Need to debug according to the application environment;
Need to set the correct light sensing value;
The dimming function needs to be adapted to the dimming drive;
Outdoor applications may be triggered by mistake.