Closed circuit TV (CCTV) systems have been in use for decades to protect homes and businesses. The presence of CCTV is often a deterrent to crime, while the images and videos captured by the cameras can be used by police to help identify the perpetrators of crimes.
Whether you’re looking for a new CCTV system for your home or business, it is worth doing some research about the different kinds of CCTV cameras available, as they have more features now than ever before.
The following are some common questions about CCTV system capabilities to help you with your research.
Do CCTV cameras record audio?
Traditionally, CCTV cameras only captured images but many modern CCTV cameras can record audio. You need a camera that comes equipped with a microphone to make this possible and in some cases you will need to turn on sound recording in the camera’s settings. So don’t assume that your camera will automatically record audio.
However, if you install cameras capable of recording audio in your business, you need to ensure that you are legally able to record audio. Due to GDPR and other regulations, private spaces like staff rooms will be off limits for audio recording.
How do outdoor CCTV cameras stay clear?
CCTV cameras in outdoor environments naturally have to contend with the weather. In the UK especially, which can experience freezing conditions in the winter and hot spells in the summer, this could lead to cameras misting up due to condensation.
However, you can buy CCTV cameras that have built-in screen heaters and de-misters to ensure that they always capture clear images, no matter what the outdoor temperature.
Is it possible to remotely adjust the way a camera points?
This will depend on the type of camera you install. The more affordable CCTV cameras available will typically point in a fixed direction. However, there are models available that can be remotely controlled to allow you to focus on specific areas from a central control room.
In addition, some models have motion sensors fitted and will pivot themselves in the direction of movement that’s detected. Most motion sensor cameras use passive infrared technology (PIR), which means they detect changes in the environment they are monitoring.
Can you zoom in on CCTV images?
We’re all used to the grainy and pixelated shots of offenders caught on CCTV that used to feature on Crimewatch. While this may still be the case for some cameras, the technology has advanced considerably and it’s possible to buy cameras that allow you to zoom in with great clarity.
These systems generally harness IP and megapixel cameras, which can be installed to cover a large area. However, the resolution of the images is high enough that it’s possible to zoom in to see specific details, like a number plate in a car park, for instance.
Do CCTV cameras have night vision?
Not all CCTV cameras are designed to record clear images in low light, but there are models that are equipped with infrared night vision that allows them to capture high-quality video even in the dark.
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