Dome cameras are either ceiling mounted or suspended from a wall mounted bracket depending on the application and the field of view required. The camera unit is mounted inside a transparent dome which can be tinted to obscure the camera position. Dome cameras come in a wide variety of forms. They can be analogue or IP, fixed or mobile. PTZ domes can rotate (pan), incline (tilt) or focus closer on objects of interest (zoom). The cameras can by thermal for night vision or be equipped with infrared illuminators or they can be for daytime use only. Housings are available for weather or vandal resistance or for use in hazardous (explosion risk) environments. Dome cameras are also available in mini- and micro- versions for discrete deployments and are available in a range of housings to suit various architectural styles. Modern IP dome cameras are also available with built-in video analytics and can receive power through the Ethernet signal cable reducing installation costs.