Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: Dahua SD21 Series, belonging to category: Security Camera

### Response:
The SD21 series offers full HD dome cameras with a 3x optical zoom that is used in a broad range of public settings. They can be integrated into networks in different ways, for instance via smartphone, PC or smart terminal. Their high-performance lenses are housed in a chassis made of special material, improving the transmission of infrared light. In this way, the cameras record high-quality images under any level of illumination. The lenses are rotatable and thus can be pointed to any spot in the room. The devices are easily installed and dust-proof as well.
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