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.
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.
HDCVI cameras that have the HD/SD switchable feature can be changed to standard definition, allowing for compatibility with legacy equipment.
Image Sensor:1/2.7" CMOS Effective Pxiels :2688X1520, 4.1MP Scanning System :Progressive Electronic Shutter Speed :1/25s - 1/100000s Minimum Illumination:0.03Lux/F2.0, 0Lux IR on S/N Ratio:>65dB IR Distance :50m IR On/Off Control:Auto/Manual IR LEDs:1
Lens Type:Fixed lens/Fixed Mount Type:Board-in Focal Length:2.8mm Max Aperture:F2.0 Angle Of View:H:97°, V:48.6° Focus Control:N/A Close Focus Distance :1400mm