1.8mm 180° wide angle board lens for CCTV cameras has standard M12x0.5 thread. | Suitable for both 1/3inch and 1/4inch CCD chipsets, with an aperture of F2.0. | Made of high quality metal material,durable in use. | Professional manufacturing, high sensitivity, high reliability. | Standard M12x0.5 thread ,image format for both 1/3inch and 1/4inch CCD.

Fixed lens is good for static environment and better picture. | The fixed lens can objectively record and reflect the movement speed and rhythm change of the subject. | Fixed lens is a static modeling method, the core of which is that frame to which the picture is attached does not move. | Fixed focal length, high-quality lens suitable for most models that can be matched. | Support high-definition pixels, the picture is more vivid and clear.

It is used in access keys, elevator keys, etc. | Repeatable entry and change times up to 100,000 times. | It can keep copying information for up to 10 years without losing. | It is made of high quality ABS material, rust and wear resistant. | Compatible with all ID/IC access control devices or ID/IC readers.

The lens hood can prevent the entry of non-imaging light and avoid haze during backlight, side light, flash or night photography. | During front light and side light photography, it can avoid surrounding scattered light entering the lens. | During light photography or night photography, it can avoid ambient interference light entering the lens. | It can also protect the lens from scratches, fingerprint, and prevents from wind, sand, rain and snow to some extent.Compatible for Nikon AF-S 70-200mm f2.8 G VR II lens. | Lens hood are widely used in backlight photography and are generally used to avoid glare. However, glare may occur if the light source is in close proximity. At this point, you can use your hand on the side of the light source to block the hood. Whether

Riser card supports for cfsta interface,entitled with high performance according to strict rule. | And this riser card supports systems above for winxp, and there is no need to drive for linux,etc. | Small size and easy to carry, hard disk adapter card can be easy to use in the practical life. | With up to 450mb / s speed, made of ABS material, which is durable and strong for use. | Entitled with practical adoptability, adapter card's high quality can keep its high performance for a long time.

Mobile devices with Type‑C interface, such as mobile phones, tablet PC, laptops extended to one Type‑C headphone interface and one 3.5mm headphone interface. | Can support voice call, designed for PD3.0 quick charging function, can listen while charging, very important for game players. | Support 1 way TypeC earphone output interface, support 1 way 3.5mm earphone output interface, support for PD3.0 quick charging. | TypeC interface support positive and negative insert, support voice and call function(not support for Samsung mobile phone), no drive designed, plug and play. | Aluminium alloy shell, integrated pressing molding, sturdy, durable and long service life.