Swann 8580 series 4k 8x4 Outdoor 4-Camera 2Tb Hard Drive Security Camera System

True Detect Thermal Sensing motion detection. the cameras feature a passive infrared PIR sensor and only record when they detect warm moving objects which is the type of movement that may represent a security threat to your property

Expandable. add up to 4 more cameras for a total of 8 to suit your budget and needs. add 4K cameras, such as the NHD-885MSB or NHD-886MSD which have 1.7 times more pixels than the 5MP cameras

Built in microphone. audio adds another layer of evidence to your footage. you can hear off-screen noises, catch arguments and identify voices by their gender, age, language or accent

This system comes with a massive, pre-installed 2TB hard drive. easily transfer incident video files to a USB stick or to a computer on your network