Video surveillance accessories include parts and components that enhance recording capabilities. Video surveillance transmitters and receivers transmit recorded footage directly to compatible cameras, computers, and televisions. Video surveillance testers run diagnostics on cameras and equipment for maintenance. Video surveillance power supplies provide a power source to operate compatible equipment and devices. Video camera lenses have different focal powers and can be adjusted to enhance viewing in strategic locations. Video camera illuminators amplify footage recorded in dark or low-light conditions. Video surveillance monitors come with different screen sizes and are used with compatible cameras to display footage. Video surveillance pan and tilt controllers position and adjust cameras remotely. Video surveillance Power over Ethernet (PoE) devices allow power and data to be accessed and controlled through a single cable.