1 | Infra Red Bullet CCTV CamerasInfra Red Bullet CCTV Cameras allow you both day and night viewing. Color by day and Black and white at night. They are controlled by a sensor which switches the day to night at around .1 lux. Infra Red Bullet CCTV Cameras that come with a varifocal lens will allow you to set and re-set your FOV - Filed of view as required. An excellent choice to any night viewing CCTV surveillace requirements. |
2 | Infra Red Dome CCTV CamerasInfra Red Dome CCTV Cameras offer the capability of viewing day and night but not only that they are usually armored making them vandal proof. These cameras are used in areas where the possibility of the camera being damaged and makes a good choice for this type of application. Some come with fixed lenses and others with Varifocal Auto Iris lenses allowing you to adjust the FOV - Field of View like you would on a regular 35mm camera. |
3 | Infra Red CCTV IlluminatorsInfra Red CCTV Illuminators are used when there is no ambient / other lighting available for the camera to produce a usable picture. Infra Red CCTV Illuminators are mainly 850 nm (nano meter) which is not visible to the human eye but the camera picks up the lighting and makes dark areas look like day, although the Infra Red CCTV Illuminators do not produce a visable light the LEDs will glow red which is visable to the human eye, the next step up is 950nm which is not visable even at the LEDs. |