Hi please see the image attached.
Example
Using the Hikvision part code naming above, we can decode a Bullet camera with the following example.
DS-2CD2042WD-I
Hikvision (DS-2)
Colour (C)
Digital (D)
Entry/2-Line (2)
Bullet (0)
4 Megapixel (42)
WDR (WD)
Infrared IR (I)