Resolution determines the number of pixels within a given video image, which in turn determines the amount of definition possible within the video image.
4MP has a resolution of 2560x1440 which is 30% greater than 1080P. 4MP is sometimes also referred to as 2K.
HDCVI cameras that have the HD/SD switchable feature can be changed to standard definition, allowing for compatibility with legacy equipment.
Zoom can relate to either a mechanical (optical) or digital zoom feature. Optical zoom allows the camera lens to adjust its focal length to zoom in on areas without degrading the picture quality. Digital zoom artificially adjusts the focal length by making the picture bigger in increments, reducing the quality of the image at each increment.
Many devices including cameras and recorders support audio recording using external microphones via an audio input or built-in microphone. Audio can be set to record along with video, offering both audio and video evidence.
A selection of our DVRs and security cameras have alarm inputs which will trigger when set up to identify potential threats, such as PIR sensors placed around a site.